What has Perseverance found in two years on Mars?

In August 2021 on a lonely crater floor, the newest Mars rover dug into one of its first rocks.

The percussive drill attached to the arm of the Perseverance rover scraped the dust and top several millimeters off a rocky outcrop in a 5-centimeter-wide circle. From just above, one of the rover’s cameras captured what looked like broken shards wedged against one another. The presence of interlocking crystal textures became obvious. Those textures were not what most of the scientists who had spent years preparing for the mission expected.
Then the scientists watched on a video conference as the rover’s two spectrometers revealed the chemistry of those meshed textures. The visible shapes along with the chemical compositions showed that this rock, dubbed Rochette, was volcanic in origin. It was not made up of the layers of clay and silt that would be found at a former lake bed.

Nicknamed Percy, the rover arrived at the Jezero crater two years ago, on February 18, 2021, with its sidekick helicopter, Ingenuity. The most complex spacecraft to explore the Martian surface, Percy builds on the work of the Curiosity rover, which has been on Mars since 2012, the twin Spirit and Opportunity rovers, the Sojourner rover and other landers.

But Perseverance’s main purpose is different. While the earlier rovers focused on Martian geology and understanding the planet’s environment, Percy is looking for signs of past life. Jezero was picked for the Mars 2020 mission because it appears from orbit to be a former lake environment where microbes could have thrived, and its large delta would likely preserve any signs of them. Drilling, scraping and collecting pieces of the Red Planet, the rover is using its seven science instruments to analyze the bits for any hint of ancient life. It’s also collecting samples to return to Earth.
Since landing, “we’ve been able to start putting together the story of what has happened in Jezero, and it’s pretty complex,” says Briony Horgan, a planetary scientist at Purdue University in West Lafayette, Ind., who helps plan Percy’s day-to-day and long-term operations.

Volcanic rock is just one of the surprises the rover has uncovered. Hundreds of researchers scouring the data Perseverance has sent back so far now have some clues to how the crater has evolved over time. This basin has witnessed flowing lava, at least one lake that lasted perhaps tens of thousands of years, running rivers that created a mud-and-sand delta and heavy flooding that brought rocks from faraway locales.

Jezero has a more dynamic past than scientists had anticipated. That volatility has slowed the search for sedimentary rocks, but it has also pointed to new alcoves where ancient life could have taken hold.

Perseverance has turned up carbon-bearing materials — the basis of life on Earth — in every sample it has abraded, Horgan says. “We’re seeing that everywhere.” And the rover still has much more to explore.
Perseverance finds unexpected rocks
Jezero is a shallow impact crater about 45 kilo­meters in diameter just north of the planet’s equator. The crater formed sometime between 3.7 billion and 4.1 billion years ago, in the solar system’s first billion years. It sits in an older and much larger impact basin known as Isidis. At Jezero’s western curve, an etched ancient riverbed gives way to a dried-out, fan-shaped delta on the crater floor.

That delta “is like this flashing signpost beautifully visible from orbit that tells us there was a standing body of water here,” says astrobiologist Ken Williford of Blue Marble Space Institute of Science in Seattle.

Perseverance landed on the crater floor about two kilometers from the front of the delta. Scientists thought they’d find compacted layers of soil and sand there, at the base of what they dubbed Lake Jezero. But the landscape immediately looked different than expected, says planetary geologist Kathryn Stack Morgan of NASA’s Jet Propulsion Laboratory in Pasadena, Calif. Stack Morgan is deputy project scientist for Perseverance.
For the first several months after the landing, the Mars 2020 mission team tested the rover’s movements and instruments, slowly, carefully. But from the first real science drilling near the landing location, researchers back on Earth realized what they had found. The texture of the rock, Stack Morgan says, was “a textbook igneous volcanic rock texture.” It looked like volcanic lava flows.

Over the next six months, several more rocks on the crater floor revealed igneous texture. Some of the most exciting rocks, including Rochette, showed olivine crystals throughout. “The crystal fabric was obviously cooled from a melt, not transported grains,” as would be the case if it were a sedimentary sample, says Abigail Allwood of the Jet Propulsion Lab. She leads the rover’s PIXL instrument, which uses an X-ray beam to identify each sample’s composition.

Mission scientists now think the crater floor is filled with igneous rocks from two separate events — both after the crater was created, so more recently than the 3.7 billion to 4.1 billion years ago time frame. In one, magma from deep within the planet pushed toward the surface, cooled and solidified, and was later exposed by erosion. In the other, smaller lava flows streamed at the surface.
Sometime after these events, water flowed from the nearby highlands into the crater to form a lake tens of meters deep and lasting tens of thousands of years at least, according to some team members. Percy’s instruments have revealed the ways that water altered the igneous rocks: For example, scientists have found sulfates and other minerals that require water to form, and they’ve seen empty pits within the rocks’ cracks, where water would have washed away material. As that water flowed down the rivers into the lake, it deposited silt and mud, forming the delta. Flooding delivered 1.5-meter-wide boulders from that distant terrain. All of these events preceded the drying of the lake, which might have happened about 3 billion years ago.

Core samples, which Perseverance is collecting and storing on board for eventual return to Earth, could provide dates for when the igneous rocks formed, as well as when the Martian surface became parched. During the time between, Lake Jezero and other wet environments may have been stable enough for microbial life to start and survive.

“Nailing down the geologic time scale is of critical importance for us understanding Mars as a habitable world,” Stack Morgan says. “And we can’t do that without samples to date.”

About a year after landing on Mars, Perseverance rolled several kilometers across the crater floor to the delta front — where it encountered a very different geology.

The delta might hold signs of ancient life
Deltas mark standing, lasting bodies of water — stable locales that could support life. Plus, as a delta grows over time, it traps and preserves organic matter.

Sand and silt deposited where a river hits a lake get layered into sedimentary material, building up a fan-shaped delta. “If you have any biological material that is trapped between that sediment, it gets buried very quickly,” says Mars geologist Eva Scheller of MIT, a researcher with the Percy team. “It creates this environment that is very, very good for preserving the organic matter.”

While exploring the delta front between April 2022 and December 2022, Perseverance found some of the sedimentary rocks it was after.
Several of the rover’s instruments zoomed in on the textures and shapes of the rocks, while other instruments collected detailed spectral information, revealing the elements present in those rocks. By combining the data, researchers can piece together what the rocks are made of and what processes might have changed them over the eons. It’s this chemistry that could reveal signs of ancient Martian life — biosignatures. Scientists are still in the early stages of these analyses.

There won’t be one clear-cut sign of life, Allwood says. Instead, the rover would more likely reveal “an assemblage of characteristics,” with evidence slowly building that life once existed there.

Chemical characteristics suggestive of life are most likely to hide in sedimentary rocks, like those Perseverance has studied at the delta front. Especially interesting are rocks with extremely fine-grained mud. Such mud sediments, Horgan says, are where — in deltas on Earth, at least — organic matter is concentrated. So far, though, the rover hasn’t found those muddy materials.

But the sedimentary rocks studied have revealed carbonates, sulfates and unexpected salts — all materials indicating interaction with water and important for life as we know it. Percy has found carbon-based matter in every rock it has abraded, Horgan says.

“We’ve had some really interesting results that we’re pretty excited to share with the community,” Horgan says about the exploration of the delta front. Some of those details may be revealed in March at the Lunar and Planetary Science Conference.

Perseverance leaves samples for a future mission
As of early February, Perseverance has collected 18 samples, including bits of Mars debris and cores from rocks, and stored them on board in sealed capsules for eventual return to Earth. The samples come from the crater floor, delta front rocks and even the thin Martian atmosphere.

In the final weeks of 2022 and the first weeks of 2023, the rover dropped — or rather, carefully set down — half of the collected samples, as well as a tube that would reveal whether samples contained any earthly contaminants. These captured pieces of Mars are now sitting at the front of the delta, at a predetermined spot called the Three Forks region.
If Perseverance isn’t functioning well enough to hand over its onboard samples when a future sample-return spacecraft arrives, that mission will collect these samples from the drop site to bring back to Earth.

Researchers are currently working on designs for a joint Mars mission between NASA and the European Space Agency that could retrieve the samples. Launching in the late 2020s, it would land near the Perseverance rover. Percy would transfer the samples to a small rocket to be launched from Mars and returned to Earth in the 2030s. Lab tests could then confirm what Perseverance is already uncovering and discover much more.

Meanwhile, Percy is climbing up the delta to explore its top, where muddy sedimentary rocks may still be found. The next target is the edge of the once-lake, where shallow water long ago stood. This is the site Williford is most excited about. Much of what we know about the history of how life has evolved on Earth comes from environments with shallow water, he says. “That’s where really rich, underwater ecosystems start to form,” he says. “There’s so much going on there chemically.”

How fingerprints form was a mystery — until now

Scientists have finally figured out how those arches, loops and whorls formed on your fingertips.

While in the womb, fingerprint-defining ridges expand outward in waves starting from three different points on each fingertip. The raised skin arises in a striped pattern thanks to interactions between three molecules that follow what’s known as a Turing pattern, researchers report February 9 in Cell. How those ridges spread from their starting sites — and merge — determines the overarching fingerprint shape.
Fingerprints are unique and last for a lifetime. They’ve been used to identify individuals since the 1800s. Several theories have been put forth to explain how fingerprints form, including spontaneous skin folding, molecular signaling and the idea that ridge pattern may follow blood vessel arrangements.

Scientists knew that the ridges that characterize fingerprints begin to form as downward growths into the skin, like trenches. Over the few weeks that follow, the quickly multiplying cells in the trenches start growing upward, resulting in thickened bands of skin.

Since budding fingerprint ridges and developing hair follicles have similar downward structures, researchers in the new study compared cells from the two locations. The team found that both sites share some types of signaling molecules — messengers that transfer information between cells — including three known as WNT, EDAR and BMP. Further experiments revealed that WNT tells cells to multiply, forming ridges in the skin, and to produce EDAR, which in turn further boosts WNT activity. BMP thwarts these actions.

To examine how these signaling molecules might interact to form patterns, the team adjusted the molecules’ levels in mice. Mice don’t have fingerprints, but their toes have striped ridges in the skin comparable to human prints. “We turn a dial — or molecule — up and down, and we see the way the pattern changes,” says developmental biologist Denis Headon of the University of Edinburgh.

Increasing EDAR resulted in thicker, more spaced-out ridges, while decreasing it led to spots rather than stripes. The opposite occurred with BMP, since it hinders EDAR production.

That switch between stripes and spots is a signature change seen in systems governed by Turing reaction-diffusion, Headon says. This mathematical theory, proposed in the 1950s by British mathematician Alan Turing, describes how chemicals interact and spread to create patterns seen in nature (SN: 7/2/10). Though, when tested, it explains only some patterns (SN: 1/21/14).

Mouse digits, however, are too tiny to give rise to the elaborate shapes seen in human fingerprints. So, the researchers used computer models to simulate a Turing pattern spreading from the three previously known ridge initiation sites on the fingertip: the center of the finger pad, under the nail and at the joint’s crease nearest the fingertip.
By altering the relative timing, location and angle of these starting points, the team could create each of the three most common fingerprint patterns — arches, loops and whorls — and even rarer ones. Arches, for instance, can form when finger pad ridges get a slow start, allowing ridges originating from the crease and under the nail to occupy more space.

“It’s a very well-done study,” says developmental and stem cell biologist Sarah Millar, director of the Black Family Stem Cell Institute at the Icahn School of Medicine at Mount Sinai in New York City.

Controlled competition between molecules also determines hair follicle distribution, says Millar, who was not involved in the work. The new study, she says, “shows that the formation of fingerprints follows along some basic themes that have already been worked out for other types of patterns that we see in the skin.”

Millar notes that people with gene mutations that affect WNT and EDAR have skin abnormalities. “The idea that those molecules might be involved in fingerprint formation was floating around,” she says.

Overall, Headon says, the team aims to aid formation of skin structures, like sweat glands, when they’re not developing properly in the womb, and maybe even after birth.

“What we want to do, in broader terms, is understand how the skin matures.”

The deadly VEXAS syndrome is more common than doctors thought

A mysterious new disease may be to blame for severe, unexplained inflammation in older men. Now, researchers have their first good look at who the disease strikes, and how often.

VEXAS syndrome, an illness discovered just two years ago, affects nearly 1 in 4,000 men over 50 years old, scientists estimate January 24 in JAMA. The disease also occurs in older women, though less frequently. Altogether, more than 15,000 people in the United States may be suffering from the syndrome, says study coauthor David Beck, a clinical geneticist at NYU Langone Health in New York City. Those numbers indicate that physicians should be on the lookout for VEXAS, Beck says. “It’s underrecognized and underdiagnosed. A lot of physicians aren’t yet aware of it.”
Beck’s team reported discovering VEXAS syndrome in 2020, linking mutations in a gene called UBA1 to a suite of symptoms including fever, low blood cell count and inflammation. His team’s new study is the first to estimate how often VEXAS occurs in the general population — and the results are surprising. “It’s more prevalent than we suspected,” says Emma Groarke, a hematologist at the National Institutes of Health in Bethesda, Md., who was not involved with the study.
VEXAS tends to show up later in life ­­— after people somehow acquire UBA1 mutations in their blood cells. Patients may feel overwhelming fatigue, lethargy and have skin rashes, Beck says. “The disease is progressive, and it’s severe.” VEXAS can also be deadly. Once a person’s symptoms begin, the median survival time is about 10 years, his team has found.

Until late 2020, no one knew that there was a genetic thread connecting VEXAS syndrome’s otherwise unexplained symptoms. In fact, individuals may be diagnosed with other conditions, including polyarteritis nodosa, an inflammatory blood disease, and relapsing polychondritis, a connective tissue disorder, before being diagnosed with VEXAS.

To ballpark the number of VEXAS-affected individuals, Beck’s team combed through electronic health records of more than 160,000 people in Pennsylvania, in a collaboration with the NIH and Geisinger Health. In people over 50, the disease-causing UBA1 mutations showed up in roughly 1 in 4,000 men. Among women in that age bracket, about 1 in 26,000 had the mutations.

A genetic test of the blood can help doctors diagnose VEXAS, and treatments like steroids and other immunosuppressive drugs, which tamp down inflammation, can ease symptoms. Groarke and her NIH colleagues have also started a small phase II clinical trial testing bone marrow transplants as a way to swap patients’ diseased blood cells for healthy ones.

Beck says he hopes to raise awareness about the disease, though he recognizes that there’s much more work to do. In his team’s study, for instance, the vast majority of participants were white Pennsylvanians, so scientists don’t know how the disease affects other populations. Researchers also don’t know what spurs the blood cell mutations, nor how they spark an inflammatory frenzy in the body.

“The more patients that are diagnosed, the more we’ll learn about the disease,” Beck says. “This is just one step in the process of finding more effective therapies.”

Too much of this bacteria in the nose may worsen allergy symptoms

A type of bacteria that’s overabundant in the nasal passages of people with hay fever may worsen symptoms. Targeting that bacteria may provide a way to rein in ever-running noses.

Hay fever occurs when allergens, such as pollen or mold, trigger an inflammatory reaction in the nasal passages, leading to itchiness, sneezing and overflowing mucus. Researchers analyzed the composition of the microbial population in the noses of 55 people who have hay fever and those of 105 people who don’t. There was less diversity in the nasal microbiome of people who have hay fever and a whole lot more of a bacterial species called Streptococcus salivarius, the team reports online January 12 in Nature Microbiology.
S. salivarius was 17 times more abundant in the noses of allergy sufferers than the noses of those without allergies, says Michael Otto, a molecular microbiologist at the National Institute of Allergy and Infectious Diseases in Bethesda, Md. That imbalance appears to play a part in further provoking allergy symptoms. In laboratory experiments with allergen-exposed cells that line the airways, S. salivarius boosted the cells’ production of proteins that promote inflammation.

And it turns out that S. salivarius really likes runny noses. One prominent, unpleasant symptom of hay fever is the overproduction of nasal discharge. The researchers found that S. salivarius binds very well to airway-lining cells exposed to an allergen and slathered in mucus — better than a comparison bacteria that also resides in the nose.

The close contact appears to be what makes the difference. It means that substances on S. salivarius’ surface that can drive inflammation — common among many bacteria — are close enough to exert their effect on cells, Otto says.

Hay fever, which disrupts daily activities and disturbs sleep, is estimated to affect as many as 30 percent of adults in the United States. The new research opens the door “to future studies targeting this bacteria” as a potential treatment for hay fever, says Mahboobeh Mahdavinia, a physician scientist who studies immunology and allergies at Rush University Medical Center in Chicago.

But any treatment would need to avoid harming the “good” bacteria that live in the nose, says Mahdavinia, who was not involved in the research.

The proteins on S. salivarius’ surface that are important to its ability to attach to mucus-covered cells might provide a target, says Otto. The bacteria bind to proteins called mucins found in the slimy, runny mucus. By learning more about S. salivarius’ surface proteins, Otto says, it may be possible to come up with “specific methods to block that adhesion.”

Lots of Tatooine-like planets around binary stars may be habitable

SEATTLE — Luke Skywalker’s home planet in Star Wars is the stuff of science fiction. But Tatooine-like planets in orbit around pairs of stars might be our best bet in the search for habitable planets beyond our solar system.

Many stars in the universe come in pairs. And lots of those should have planets orbiting them (SN: 10/25/21). That means there could be many more planets orbiting around binaries than around solitary stars like ours. But until now, no one had a clear idea about whether those planets’ environments could be conducive to life. New computer simulations suggest that, in many cases, life could imitate art.
Earthlike planets orbiting some configurations of binary stars can stay in stable orbits for at least a billion years, researchers reported January 11 at the American Astronomical Society meeting. That sort of stability, the researchers propose, would be enough to potentially allow life to develop, provided the planets aren’t too hot or cold.

Of the planets that stuck around, about 15 percent stayed in their habitable zone — a temperate region around their stars where water could stay liquid — most or even all of the time.

The researchers ran simulations of 4,000 configurations of binary stars, each with an Earthlike planet in orbit around them. The team varied things like the relative masses of the stars, the sizes and shapes of the stars’ orbits around each other, and the size of the planet’s orbit around the binary pair.

The scientists then tracked the motion of the planets for up to a billion years of simulated time to see if the planets would stay in orbit over the sorts of timescales that might allow life to emerge.

A planet orbiting binary stars can get kicked out of the star system due to complicated interactions between the planet and stars. In the new study, the researchers found that, for planets with large orbits around star pairs, only about 1 out of 8 were kicked out of the system. The rest were stable enough to continue to orbit for the full billion years. About 1 in 10 settled in their habitable zones and stayed there.

Of the 4,000 planets that the team simulated, roughly 500 maintained stable orbits that kept them in their habitable zones at least 80 percent of the time.

“The habitable zone . . . as I’ve characterized it so far, spans from freezing to boiling,” said Michael Pedowitz, an undergraduate student at the College of New Jersey in Ewing who presented the research. Their definition is overly strict, he said, because they chose to model Earthlike planets without atmospheres or oceans. That’s simpler to simulate, but it also allows temperatures to fluctuate wildly on a planet as it orbits.
“An atmosphere and oceans would smooth over temperature variations fairly well,” says study coauthor Mariah MacDonald, an astrobiologist also at the College of New Jersey. An abundance of air and water would potentially allow a planet to maintain habitable conditions, even if it spent more of its time outside of the nominal habitable zone around a binary star system.

The number of potentially habitable planets “will increase once we add atmospheres,” MacDonald says, “but I can’t yet say by how much.”

She and Pedowitz hope to build more sophisticated models in the coming months, as well as extend their simulations beyond a billion years and include changes in the stars that can affect conditions in a solar system as it ages.

The possibility of stable and habitable planets in binary star systems is a timely issue says Penn State astrophysicist Jason Wright, who was not involved in the study.

“At the time Star Wars came out,” he says, “we didn’t know of any planets outside the solar system, and wouldn’t for 15 years. Now we know that there are many and that they orbit these binary stars.”

These simulations of planets orbiting binaries could serve as a guide for future experiments, Wright says. “This is an under-explored population of planets. There’s no reason we can’t go after them, and studies like this are presumably showing us that it’s worthwhile to try.”

A supernova’s delayed reappearance could pin down how fast the universe expands

A meandering trek taken by light from a remote supernova in the constellation Cetus may help researchers pin down how fast the universe expands — in another couple of decades.

About 10 billion years ago, a star exploded in a far-off galaxy named MRG-M0138. Some of the light from that explosion later encountered a gravitational lens, a cluster of galaxies whose gravity bent the light so that we see multiple images. In 2016, the supernova appeared in Earth’s sky as three distinct points of light, each marking three different paths the light took to get here.

Now, researchers predict that the supernova will appear again in the late 2030s. The time delay — the longest ever seen from a gravitationally lensed supernova — could provide a more precise estimate for the distance to the supernova’s host galaxy, the team reports September 13 in Nature Astronomy. And that, in turn, may let astronomers refine estimates of the Hubble constant, the parameter that describes how fast the universe expands.

The original three points of light appeared in images from the Hubble Space Telescope. “It was purely an accident,” says astronomer Steve Rodney of the University of South Carolina in Columbia. Three years later, when Hubble reobserved the galaxy, astronomer Gabriel Brammer at the University of Copenhagen discovered that all three points of light had vanished, indicating a supernova.
By calculating how the intervening cluster’s gravity alters the path the supernova’s light rays take, Rodney and his colleagues predict that the supernova will appear again in 2037, give or take a couple of years. Around that time, Hubble may burn up in the atmosphere, so Rodney’s team dubs the supernova “SN Requiem.”

“It’s a requiem for a dying star and a sort of elegy to the Hubble Space Telescope itself,” Rodney says. A fifth point of light, too faint to be seen, may also arrive around 2042, the team calculates.、
The predicted 21-year time delay — from 2016 to 2037 — is a record for a supernova. In contrast, the first gravitational lens ever found — twin images of a quasar spotted in 1979 — has a time delay of only 1.1 years (SN: 11/10/1979).

Not everyone agrees with Rodney’s forecast. “It is very difficult to predict what the time delay will be,” says Rudolph Schild, an astrophysicist at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass., who was the first to measure the double quasar’s time delay. The distribution of dark matter in the galaxy hosting the supernova and the cluster splitting the supernova’s light is so uncertain, Schild says, that the next image of SN Requiem could come outside the years Rodney’s team has specified.

In any case, when the supernova image does appear, “that would be a phenomenally precise measurement” of the time delay, says Patrick Kelly, an astronomer at the University of Minnesota in Minneapolis who was not involved with the new work. That’s because the uncertainty in the time delay will be tiny compared with the tremendous length of the time delay itself.

That delay, coupled with an accurate description of how light rays weave through the galaxy cluster, could affect the debate over the Hubble constant. Numerically, the Hubble constant is the speed a distant galaxy recedes from us divided by the distance to that galaxy. For a given galaxy with a known speed, a larger estimated distance therefore leads to a lower number for the Hubble constant.

This number was once in dispute by a factor of two. Today the range is much tighter, from 67 to 73 kilometers per second per megaparsec. But that spread still leaves the universe’s age uncertain. The frequently quoted age of 13.8 billion years corresponds to a Hubble constant of 67.4. But if the Hubble constant is higher, then the universe could be about a billion years younger.

The longer it takes for SN Requiem to reappear, the farther from Earth the host galaxy is — which means a lower Hubble constant and an older universe. So if the debate over the Hubble constant persists into the 2030s, the exact date the supernova springs back to life could help resolve the dispute and nail down a fundamental cosmological parameter.

Terence Crawford vs. Shawn Porter purse, salaries: How much money will they make in 2021 fight?

Terence Crawford will face his toughest challenge yet to retain his WBO welterweight belt.

Crawford has fended off Jose Benavidez Jr., Amir Khan, Egidijus Kavaliauskas and Kell Brook in four defenses of his belt, but on Saturday, the stakes will be raised as he faces Shawn Porter.
Porter has, at various points in his career, held different welterweight belts. He has held the WBC-NABF title, the IBF title and the vacant WBC title in the welterweight class, but Porter has lost three times in his past 10 fights, leading to the loss of the belts.

The winner of this fight will leave Michelob Ultra Arena with a belt, but both are going to be coming away with a good deal of money for the fight. Here's a look at how much each will earn, as well as the fighters' net worth, ahead of the fight.
Terence Crawford vs. Shawn Porter purse
These two fighters will each be coming away with a comparable payday for Saturday's fight. According to ESPN, Crawford will make upwards of $6 million, while Porter will pocket at least $4 million.

What is Terence Crawford's net worth?
Crawford's unblemished record does not yet accompany the lofty earnings. Celebrity Net Worth reports that Crawford has a net worth of $8 million.

What is Shawn Porter's net worth?
Porter's payday on Saturday will be a boon to his net worth. According to Celebrity Net Worth, Crawford has a net worth of $5 million.
Terence Crawford career record
Nationality: American
Born: Sept. 28, 1987 (34 years old)
Height: 5-8
Reach: 74 inches
Record: 37-0-0 (28 KOs)
Shawn Porter career record
Nationality: American
Born: Oct. 27, 1987 (34 years old)
Height: 5-7
Reach: 69.5 inches
Record: 31-3-1 (17 KOs)
We may earn an affiliate commission when you sign up for a streaming service through our links. Sporting News' affiliates have no influence over the editorial content included in this article.

Khris Middleton passes Ray Allen to become Bucks all-time leader for 3-pointers made

With his first 3-pointer early in the Bucks home game against the Oklahoma City Thunder, All-Star Khris Middleton made franchise history.

He surpassed franchise legend and Hall of Famer Ray Allen for the most 3-pointers in Bucks' regular-season history.
Allen, considered one of the greatest shooters of all-time, set the tally of 1,051 3-pointers in 494 games for the Bucks between 1996 and 2003. He knocked them down at an average of 2.1 per game at an efficiency of 40.6 percent.

On the other hand, Middleton passed Allen's tally in his 566th regular-season game for the Bucks and sits atop the leaderboard with 1,054 career 3-pointers. The 30-year-old is making 1.9 3-pointers per game at a rate of 39.4 percent.
2021 has been considered quite the year for Middleton with this recent record only the cherry on top.

Just days after winning the 2021 championship with the Bucks, Middleton travelled to Tokyo to be part of Team USA's roster that went on to win the Olympic gold medal.

"To break a record like this, any franchise record is amazing," Middleton said postgame.
Both Allen and Middleton were acquired by the Bucks in trades.

Drafted by the Minnesota Timberwolves with the fifth overall pick in the 1996 Draft, Allen and Andrew Lang were traded to the Bucks for the draft rights to fourth pick Stephon Marbury.

Meanwhile, Middleton was acquired by the Bucks in 2013 along with Brandon Knight and Viacheslav Kravtsov from the Detroit Pistons in exchange for Brandon Jennings. The Pistons had drafted Middleton with the 39th overall pick in the 2012 Draft.

Yankees have strong free-agent options at shortstop, center field and starter

George Steinbrenner, the fiery, volatile Yankees owner who prioritized winning over pretty much everything else, died of a heart attack at 80 years old in July 2010, about nine months after his club won the 2009 World Series in six games over the Phillies.

The Yankees, who won seven World Series titles in Steinbrenner’s era (1973-2010) — and made the final round four other times — haven’t been back to the World Series since his death. The team from the Bronx has been good since then, with two 100-win seasons and nine trips to the playoffs — including four to the ALCS — but hasn’t broken through.
Maybe the most frustrating thing of all? The Yankees have had more regular season wins than the eventual World Series champ five times since that 2009 title: in 2010 (95, to the Giants’ 92), 2011 (97, to the Cardinals’ 90), 2012 (95, to the Giants’ 94), 2019 (103, to the Nationals’ 93) and 2021(92, to the Braves’ 88).

So, yeah, there’s plenty of motivation this offseason to add significant talent to what’s already a very talented roster. Here are two things we know about the Yankees’ offseason plans: They are going to acquire a shortstop, and payroll will increase.

Longtime GM Brian Cashman has spoken often since his club’s season ended about the need to upgrade at shortstop — Gleyber Torres is moving full time to second base — and he addressed the payroll issue speaking to reporters at the GM meetings this week.

“Well, it’s going to have to be (increasing). We don’t have a lot of stuff coming off,” Cashman said, according to the New York Post. “So obviously I’ll have some latitude.”

The Yankees stayed under the competitive-balance tax threshold in 2021, which was important to the club because penalties for going over the set number — it was $210 million in 2021 — increase sharply for every consecutive year a team is over. Getting back under the number for a season resets everything. So the Yankees are back to zero, but expect them to exceed the luxury tax — whatever the number might be — next year.

Let’s take a look at what the Yankees might do, at positions that Cashman has said are in play this offseason. We’ll start with the obvious one.

Yankees shortstop options
Back when Cashman made his initial comments saying shortstop was an “area of need” we took a dive into the most obvious options in front of the club, so we’ll just link to that story and give you the Cliff Notes version here.

Carlos Correa and Corey Seager are the two biggest names, meaning they’ll both demand massive contracts of at least 10 years. Trevor Story is coming off a down year, but the Yankees had a lot of success with one ex-Rockie (D.J. LeMahieu). Marcus Semien is a top-three AL MVP finisher this year, and he could move to second when/if one of the Yankees’ shortstop prospects is ready for the bigs. Javier Báez is an intriguing option.

“It’s certainly the year of the shortstop, certainly with a lot of high-end, talented players coming out at the same time,” Cashman said at the GM meetings.

After those five free agents, there are options the fan base probably wouldn’t like but wouldn’t be awful, such as signing Jose Iglesias or Andrelton Simmons (Cashman’s mentioned defense a couple of times) or trading for Paul DeJong.
Yankees starting pitcher options
Here’s what Cashman said on the topic at the GM meetings: “Always pitching, pitching, pitching, even though our pitching was a good thing for us this year. It’s always good to try to reinforce it and add to it if you can.”

Stealing this from a TSN piece earlier this week: The Yankees’ 2022 rotation options at the moment consist of perennial Cy Young candidate Gerrit Cole and about eight or nine pitchers who seem likely to post an ERA in the 4s if given 25 to 30 starts. It would seem unlikely that the Yankees would add a bottom-of-the-rotation starter this offseason, unless it’s an opportunistic trade or signing with low risk.

Here are four options to slot in there next to Cole:

Max Scherzer, free agent: Scherzer is 37 going on 29, still an effective and often dominant starting pitcher in the big leagues. The right-hander with three Cy Young wins had a 1.98 ERA in 11 starts with the Dodgers after arriving in a trade with the Nationals. He’ll have lots of teams bidding for his services, offering two or three-year deals with crazy-high annual salaries. A short-term, high AAV deal makes sense for the Yankees, who have to tackle the Aaron Judge extension issue sooner than later.

Justin Verlander, free agent: Sure, he’s coming off Tommy John surgery and will turn 39 during spring training. But that TJ surgery was 17 months ago, and Verlander impressed during his showcase throwing session earlier this week, sitting 94-97 with his fastball. And the idea of pairing Verlander with Cole atop the rotation has to be intriguing. Remember 2019, when those two finished 1-2 in the AL Cy Young race as teammates in Houston? You can bet the Yankees — who lost to those Astros in the ALCS that year — remember the duo well.

Marcus Stroman, free agent: Stroman was outstanding for the Mets in 2021, one of the few players on the team who was good start to finish. He made 33 starts for the club, posting a 3.02 ERA and 3.49 FIP, with only 2.2 walks per nine. Stroman pitched at least five full innings in 29 of his 33 starts — including every July, August and September outing — and only three pitchers topped that number: Zack Wheeler, Walker Buehler and Julio Urias. And you know Stroman would love the pressure of pitching under the Bronx microscope.

Kevin Gausman, free agent: Gausman was outstanding in 2021 for the Giants, posting the best season of his career. He had a 2.81 ERA/3.00 FIP in 33 starts, with a 10.6 K/9 and 2.3 BB/9. Plus, he played last year after accepting San Francisco’s qualifying offer, so he has no draft-pick compensation attached, which is nice for him. He knows the pressures of the AL East from his days with the Orioles, but now instead of facing the Yankees a couple times per season, he’d face an Orioles club that lost 110 games in 2021.

Yankees center field options
Aaron Hicks is a hard worker and a good teammate, but at this point in his career, he’s probably not a full-time center fielder, as much as the Yankees might want him to be. The club gave him a seven-year, $70 million contract after his breakthrough 2018 season — 27 homers, .833 OPS, 4.4 bWAR — but he only played 91 of the possible 324 games in 2019 and 2021, and though he played 54 of the 60 games in the pandemic-shortened 2020 season, his production wasn’t great: 0.8 bWAR, 6 homers, 21 RBI, .225 average.

The injury issues aren’t new. Hicks has been in the majors for eight 162-game seasons, and he’s played more than 97 games only twice. His contract has four remaining years, but using “contractual obligation” to determine starters isn’t the best way to build a World Series team. Cashman acknowledged as much at the GM meetings.

“He’s going to finish off his rehab and he very well might be our starting center fielder, but again I’m going to be open-minded and evaluate all opportunities,” Cashman said. “We just want to make sure we put the best team out there. There are no guarantees right now, for anybody. … Aaron Hicks was hurt, so he’s been off the board. He might play some winter ball, we’ll see. In the meantime, center field was an area of concern this past year because of his injury.”

Here are four options:

Starling Marte, free agent: He’s heading into his Age 33 season, but Marte still is a great player. He led the majors with 47 stolen bases despite playing just 120 games combined for the Marlins and A’s, and he posted a career-best on-base percentage (.381) and OPS+ (131), plus a bWAR of 4.0 or better for the sixth time in his career. He’s also an outstanding defensive center fielder. A three-year deal with a relatively high AAV seems reasonable.

Chris Taylor, free agent: Playing center field is just one of his many talents. The Yankees could sign him with the idea that he’s the starting center fielder, but they’d also be getting a replacement third baseman if Gio Urshella gets hurt, a replacement shortstop if the new shortstop gets hurt, a replacement second baseman if Torres goes down and he could probably catch, too, if Gary Sanchez gets hurt (OK, not the last one, but you get the picture).

Joey Gallo, on the roster: The Yankees could decide to keep this one in house, with Gallo — yes, he’s a large human but he’s an excellent defensive outfielder who has played 55 games in center in his career — as the fallback option if the club decides that Hicks is ready to take the full-time role this spring.

Brett Gardner, free agent: Yep, Gardner could possibly come back, even after both sides declined their options this offseason. Another year of “hope Hicks is healthy, but at least we have Gardy” might not be the most appealing, but if the Yankees spend big at shortstop and in the rotation, that could what winds up happening.

Don't expect Carlos Correa's take on Derek Jeter to be a deal-breaker for Yankees

Carlos Correa's statement last week that Yankees legend Derek Jeter "did not deserve" any of his five Gold Gloves wouldn't be as controversial if Correa wasn't one of the hottest free agents on the market this offseason and would solve the Yankees' current shortstop problems. Goodness knows, he isn't the only person who has said such a thing.

Correa, 27, won a Rawlings Platinum Glove this year as the best fielder, regardless of position, in the American League. He also collected a Gold Glove (his first). He racked up 21 defensive runs saved, most in MLB among shortstops and seven more than runner-up Andrelton Simmons. He's no slouch in the field.

In fact, DRS was a large part of Correa's seeming diss of Jeter on an episode of "Me Gustan Los Deportes" ("I Like Sports"), a Facebook Live show hosted by former MLB star Carlos Baerga. Correa used Jeter's career numbers to illustrate the point that evaluation of defense has changed over the years because of the rise of advanced stats such as DRS.

"Derek Jeter. How many Gold Gloves did he win? Five. I think he won five. Derek Jeter did not deserve any of them," Correa, who has been an admirer of Jeter's, said in Spanish. "You know how much Derek Jeter's [DRS was] in his career? Negative 160 [actually, negative 162, per Fangraphs]. In his career. But your eyes can lie to you. Your eyes can lie to you. His fame . . ."
Heard in isolation, that snippet was a shot at "The Captain." And it came out during a period when the Yankees can bid on Correa, who reportedly turned down an offer recently of five years and $160 million from his old club, the Astros.
Jeter's fame served him well over his two decades with the Bronx Bombers, but it's not why AL managers and coaches voted him a Gold Glove winner in 2004, 2005, 2006, 2009 and 2010 when he was roaring through his 30s. (Critics might say his jump throws and solid hitting were why.) He had one positive DRS figure his entire career, a plus-3 in 2009. Sabermetrics didn't help to decide fielding awards then, however; the eye test was still king.

Jeter passed the test. Correa noted that the eyes can lie.

Jeter's enduring popularity led some Yankees fans to rush to his defense Monday against Correa, who is a sworn enemy in parts of New York because he played for the cheating Astros in 2017, when they beat the Yankees in the ALCS.
But other fans — and, most importantly, Yankees management — know that Correa would be a massive upgrade over Gleyber Torres, Tyler Wade or any other internal candidate. Yankees shortstops tied for 25th in the majors this year with minus-14 DRS. Adding a top-notch player at the position is an offseason priority.

And Correa is top-notch. He heads a loaded free-agent shortstop class that also includes Corey Seager, Javier Baez, Marcus Semien and Trevor Story. The Yankees won't reject him because of a quote that may have been taken out of context. They would be glad to have him play Jeter's position — and very happy if he plays it better than Jeter did.