R.I.P. Cassini

After 20 years in space and 13 years orbiting Saturn, the veteran spacecraft spent its last 90 seconds or so firing its thrusters as hard as it could to keep sending Saturnian secrets back to Earth for as long as possible.

The spacecraft entered Saturn’s atmosphere at about 3:31 a.m. PDT on September 15 and immediately began running through all of its stabilizing procedures to try to keep itself upright. The signal that Cassini had reached its destination arrived at Earth at 4:54 a.m., and cut out about a minute later as the spacecraft lost its battle with Saturn’s atmosphere.
“The signal from the spacecraft is gone, and within the next 45 seconds, so will be the spacecraft,” Cassini project manager Earl Maize announced from the mission control center at NASA’s Jet Propulsion Lab. “I hope you’re all as deeply proud of this amazing accomplishment. Congratulations to you all. This has been an incredible mission, an incredible spacecraft, and you’re all an incredible team. I’m going to call this the end of mission. Project manager, off the net.”

With that, the mission control team erupted in applause, hugs and some tears.
It’s the end of an era. But the spacecraft’s last moments at Saturn will answer questions that couldn’t have been addressed any other way.
Going out in a blaze of glory seems fitting. Since its launch in 1997, the probe traveled a total of 7.9 billion kilometers. It gathered more than 635 gigabytes of science data and took more than 450,000 images. It completed 294 orbits of Saturn, discovered six named moons and made 162 close, deliberate flybys of the ringed planet’s largest and most interesting moons.
The last flyby sealed Cassini’s fate. On September 11, at 12:04 p.m., Cassini passed by Saturn’s largest moon Titan one last time ( SN Online: 9/11/17 ). The moon’s gravity nudged Cassini on an irretrievable trajectory into the giant planet’s atmosphere.
Also blame the moons — particularly lake-dappled Titan and watery Enceladus — for why Cassini went out in such dramatic fashion. The mission team decided to sacrifice the spacecraft when it ran out of fuel, rather than risk a collision with one of those potentially habitable moons and contaminating it with any still-lingering earthly microbes.

“Because of planetary protection and our desire to go back to Enceladus, go back to Titan, go back to the Saturn system, we must protect those bodies for future exploration,” Jim Green, director of NASA’s planetary science division, said at a news conference on September 13.

Even in its months-long death spiral, Cassini collected unprecedented observations. Starting in April, the spacecraft made 22 dives through the unexplored region between Saturn and its rings. Measurements of the gravity and composition in that zone will help solve outstanding mysteries. How long is Saturn’s day? How much material is in the rings? When and how did the rings form?

To answer that last question in particular, “you have to fly between the planet and the rings,” says planetary scientist Matthew Hedman of the University of Idaho in Moscow, who uses Cassini data to study the rings. “That’s risky. We had to wait until the end of the mission to take that risk.”
On September 13 and 14, Cassini took a last look around the Saturn system’s greatest hits, taking a color mosaic image of Saturn and the rings, a movie sequence of Enceladus setting behind Saturn, Titan and tiny moonlets in the rings that pull the icy ring particles around themselves to form features called propellers.

Inside the mission control center on the afternoon of September 14, a hushed operations team waited for Cassini to come online for the last time to start sending the last pictures back (SNOnline: 9/15/17). Then flight engineer Michael Staab at JPL suddenly broke the silence. “Yeah!” he yelled, pumping both arms in the air. Cassini’s last signal had just come in.

“That tells us that the spacecraft is nice and healthy, she’s doing just fine. She’s doing exactly what she’s supposed to do, like she’s done for 13 years,” Staab said. “We’re just gonna track her now, all the way in.”
In the wee hours of September 15, the spacecraft reconfigured itself to shift from a recording device to a transmitting probe. As of that moment, its last and only job was to stream everything it could sense directly back to Earth in real time. Turning so that its ion neutral mass spectrometer was facing directly towards Saturn, Cassini could taste the atmosphere for the first time and investigate a phenomenon called “ring rain,” in which water and ice from the rings splash into the atmosphere. This idea was introduced in the early 1980s, but Cassini has already shown that it’s more complicated than previously thought.

“We’re trying to find out exactly what is coming from the rings and what is due to the atmosphere,” Hunter Waite, Cassini team lead for the mass spectrometer instrument and an atmospheric scientist at the Southwest Research Institute in San Antonio, said at the Sept. 13 news conference. “That final plunge will allow us to do that.”
That plunge happened at about 3:31 a.m., when Cassini entered the atmosphere about 10 degrees north of the equator, falling at around 34 kilometers per second. It took data constantly, directly measuring the temperature, magnetic field, plasma density and composition of the upper layers of Saturn’s atmosphere for the first time ever.
When it hit the atmosphere, Cassini started firing its thrusters to keep its antenna pointed at Earth despite the forces of the atmosphere trying to knock it askew. But about a minute later, the atmosphere won, when Cassini was about 1,400 kilometers above the cloud tops.

What happened next, scientists can only imagine. Models suggest this fiery demise: The spacecraft attempted to stabilize itself, but to no avail. It started to tumble faster and faster. Atmospheric friction broke the spacecraft apart, bit by bit — first its thermal blankets burned off, then aluminum components started to melt. The spacecraft probably fell another 1,000 kilometers as it disintegrated like a meteor, Maize said.

Saturn’s atmosphere crushed and melted the bits and pieces, until they completely dissociated and became part of the very planet the spacecraft had been sent to observe.

When all was said and done, the spacecraft lasted about 30 seconds longer than expected. That may help ensure the team got enough data to figure out Saturn’s rotation period, science team member Michele Dougherty of Imperial College London said at a post-mission news conference September 15. “I’m hoping we can do it, I’m not going to promise. Ask me in three months’ time.”

There are no planned future missions to Saturn, although some Cassini alumni are already working on proposals.
Outer solar system astronomers are now setting their sights on Jupiter and its icy, possibly life-friendly moons. The European Space Agency’s Jupiter Icy Moons Explorer (JUICE) and NASA’s Europa Clipper both hope to launch around 2022. Those missions may pave the way for a lander on Europa (SN Online: 2/18/17), which could directly look for life in that moon’s subsurface seas.

Planetary scientist Kevin Hand at JPL, who is leading the science definition team for the proposed Europa lander, feels a debt to Cassini.

“When you’re at the earliest frontiers of exploration, it’s hard to feel sad,” he said. “The wake we’re experiencing right now for Cassini, it’s not so much an end but the early steps that pave the way for the next stage of exploration.”

Even Maize is more proud than mourning.

“This is exactly the way we always planned it. It’s sad that we’re losing this incredible discovery machine,” he said in the moments leading up to Cassini’s disintegration. “But the real sense here is just, all right, we got it!”

EPA OKs first living pest-control mosquito for use in United States

In a big step toward catching up with the rest of the world, the United States cleared the way for using mosquitoes as a commercial pest control for the first time.

The U.S. Environmental Protection Agency has approved using a strain of male Asian tiger mosquitoes (Aedes albopictus) as a biopesticide in the District of Columbia and 20 states, including California and New York. Kentucky-based MosquitoMate was granted the right to sell these mosquitoes, called ZAP Males, for the next five years, the agency announced November 7.
These male mosquitoes are not genetically modified. Instead they carry a strain of Wolbachia bacteria that turns them into saboteur dads. When they mate with wild females not carrying the strain, the offspring will die and the population should dwindle. Males don’t bite, so releasing them should not add extra vexation.

Releases of Wolbachia-bearing mosquitoes for pest control already go on in other countries, such as Brazil, although with a different bacterial strain and a different strategy.

This same company has also been testing the effectiveness of a different mosquito species, Aedes aegypti, also carrying bad-dad Wolbachia, near Key West, Fla. (These mosquitoes are not commercially available.) The tests “ended a bit early due to [Hurricane] Irma,” says Stephen Dobson of MosquitoMate, “but we think that we have some good data despite this complication.”

See these first-of-a-kind views of living human nerve cells

The human brain is teeming with diversity. By plucking out delicate, live tissue during neurosurgery and then studying the resident cells, researchers have revealed a partial cast of neural characters that give rise to our thoughts, dreams and memories.

So far, researchers with the Allen Institute for Brain Science in Seattle have described the intricate shapes and electrical properties of about 100 nerve cells, or neurons, taken from the brains of 36 patients as they underwent surgery for conditions such as brain tumors or epilepsy. To reach the right spot, surgeons had to remove a small hunk of brain tissue, which is usually discarded as medical waste. In this case, the brain tissue was promptly packed up and sent — alive — to the researchers.
Once there, the human tissue was kept on life support for several days as researchers analyzed the cells’ shape and function. Some neurons underwent detailed microscopy, which revealed intricate branching structures and a wide array of shapes. The cells also underwent tiny zaps of electricity, which allowed researchers to see how the neurons might have communicated with other nerve cells in the brain. The Allen Institute released the first publicly available database of these neurons on October 25.

A neuron called a pyramidal cell, for instance, has a bushy branch of dendrites (orange in 3-D computer reconstruction, above) reaching up from its cell body (white circle). Those dendrites collect signals from other neural neighbors. Other dendrites (red) branch out below. The cell’s axon (blue) sends signals to other cells that spur them to action.
Like the chandelier cell, a Martinotti cell (below) quiets other cells with messages coming from its tangled, tall axon, which spans several layers of the brain’s cortex — the wrinkly, outer layer that’s involved in higher-level thought. And in a basket cell (above), axon branches, which allow the nerve cell to send messages to other neurons, cluster densely around the cell body.
Because the neurons play different roles in the brain, the new collection could help researchers figure out the details of those diverse jobs. Similar data exist for cells taken from the brains of other animals, such as mice, but until now, data on live cells from people have been scarce.

“These neurons are amazingly beautiful,” says Ed Lein, a neuroscientist at the Allen Institute who works on the project. “They look like trees. They’re much more complex than similar cells in a mouse.”

'Fire Nagy' chants take over Chicago after Bears' latest loss, including at Matt Nagy's son's football game

The "Fire Nagy" chants can be heard all over Chicago, from Soldier Field all the way to Matt Nagy's son's football games.

The Bears have now lost five straight games, and fans are frustrated, to say the least. They have aimed their anger at the 43-year-old head coach, who has found himself in the middle of the majority of Bears-related drama this season.
After Sunday's 16-13 loss to the Ravens, the Soldier Field crowd broke out into "Fire Nagy" chants. Then, on Monday night at the Bulls vs. Pacers game at the United Center, "Fire Nagy" chants could be heard. Then, on Tuesday, video surfaced showing that "Fire Nagy" chants took over his own son's football game on Saturday night.
Nagy's son plays football for Lake Forest High School in a Chicago suburb. Lake Forest played Cary-Grove High School on Saturday, and Cary-Grove captured a blowout victory, which prompted the Cary-Grove student section to start yelling "Fire Nagy."
Cary-Grove principal Neil Lesinski posted an apology on Twitter on Tuesday morning. His full statement:
It doesn't seem like the "Fire Nagy" chants will be going anywhere if the Bears continue to lose. They have a chance to get their fourth win of the season on Thanksgiving when they play the 0-9-1 Lions.

On Tuesday, there was a rumor circulating that Nagy's last game as coach would be against the Lions on Thursday. Nagy addressed these rumors with the media on Tuesday, claiming that they are "not accurate."

Terence Crawford vs. Shawn Porter results: Crawford retains WBO welterweight title with 10th-round stoppage

LAS VEGAS — All the questions about Terence Crawford have been answered.

For years, the only knock on him was that he lacked a signature victory. He finally picked up one — and in exceptional fashion — when he became the first fighter to stop Shawn Porter, recording a 10th-round TKO to retain his WBO welterweight championship in front of 11,568 fans at Michelob ULTRA Arena.
Now, the world will be clamoring for a unification bout with IBF and WBC champion Errol Spence Jr.

As it always has been against Porter, winning didn't come easy.

At the time of the stoppage, Crawford was up on all three scorecards: 86-85, 86-85 and 87-84. Porter routinely barreled inside and kept Crawford off balance with aggression and pressure. But Crawford began to time Porter's advances and then picked him off with counters that eventually wore down the former two-time champion.

In the 10th round, Crawford opened with a thudding left hand that deposited Porter on his backside. A frustrated Porter made it to his feet but was met with a scintillating combination that dropped Porter to his knees. Porter pounded on the canvas out of frustration and made it back to his feet again. Unfortunately, his father and trainer, Kenny Porter, decided that his son had had enough and threw in the towel.

Crawford improved to 38-0 with 29 knockouts. Porter became his ninth consecutive knockout victim. As for Porter, his career is at a crossroads of sorts as he falls to 31-4-1 and goes to the back of the line when it comes to title opportunities.

Here's how it all went down in Las Vegas.

Terence Crawford vs. Shawn Porter live updates, highlights
(All times Eastern.)

Round 10 (12:15 a.m.): Crawford drops Porter with a left hand to open the round! Porter is up and Crawford is a killer. He’s looking to finish the job. Crawford with a barrage that drops Crawford. Porter beats the canvas on his way up. Porter’s corner stops it! Wow!

Round 9 (12:13 a.m.): Short left hand by Porter lands to open the round. Big hook by Porter barely lands. Bud is unbothered. Body shot by Porter. Crawford looking for his spots and Porter isn’t making it easy. Crawford lands an uppercut on the inside and a body shot. 10-9, Crawford (86-85, Crawford)

Round 8 (12:09 a.m.): Crawford with a hard right hand and Porter comes straight at him throwing bombs. Crawford avoids and picks him off with a right hand. Beautiful sequence by Bud. Porter chops him on the inside with a short left and barrels inside. Hard left hand by Porter. Big right hand by Porter rattles Crawford. Crawford smiles and centers himself. How do you score this round? 10-9, Crawford (76-76)

Round 7 (12:04 a.m.): Porter strafes Bud with a left hand. Crawford gives Porter different looks and feints. They exchange left hands. Right hand by Porter lands and Crawford bounces off the ropes. Short counter right by Crawford as Porter rolls in. Porter won’t stop coming. Bud is smiling again. But he’s not throwing enough. 10-9, Porter (67-66, Porter)

Round 6 (12:01 a.m.): Crawford lands a big right hand They are going to war again. Crawford looking for the big shot and loading up. Porter comes roaring back. They clash heads. Crawford looks like he’s enjoying the dog fight. Porter roughs him up on the inside. Man, this is a damn fight. Counter left on the inside by Crawford. Lots of infighting to close a tight round. 10-9, Crawford (57-57)

Round 5 (11:57 p.m.): Porter working on Bud from the inside with some roughhousing. Crawford trying to walk Porter down. Flashes the jab. Porter bombing away on Crawford as he covers up. Not a lot gets through. Crawford walking him down. Porter is just outworking him in this round but Crawford is hoping he spent up his gas tank. 10-9, Porter (48-47, Porter)

Round 4 (11:52 p.m.): Hard left hook from Porter to open the round. Crawford lands a combination and a left hand. They exchange hard shots. Porter lands a right hand and Bud smiles. Porter with a jab and Bud responds to the body. Porter with a lunging hook that lands. Crawford with a check hook that almost Ricky Hatton'd Porter. They start swinging again. Closer round. 10-9, Crawford (38-38)

Round 3 (11:48 p.m): Crawford looks comfortable fighting lefty. Starts pushing Porter back. Porter lands a hard combination. Crawford tried to time and barely missed a counter hook. Porter stuns Bud with a left hand! Bud smiles but he was cracked. They are talking now. Porter is cut over the right eye. Crawford smiling but he knows that he's now in a fight. 10-9, Porter (29-28, Porter)

Round 2 (11:44 p.m.): Porter lands a jab and Bud switches to southpaw. Barely misses a counter. Lands a hard right hand on Porter. Porter cracks Bud with a hard right hand in response. Crawford lands a right hand and barely misses an uppercut. A firefight breaks out. Both landing hard shots. Bud with a counter uppercut and Porter with a right hand. Crawford lands the jab and smiles. We're about to have a good one. 10-9, Crawford (19-19)

Round 1 (11:40 p.m.): Porter rushes right at Crawford with a left hook and follows with a right hand that lands. Porter aims to rough Bud up along the ropes and gets tied up. Crawford is reading and timing Porter. Starts to fire the jab. Left hand by Porter lands. Hard jab by Bud lands. Crawford smirks at Porter. He may have figured out something already. 10-9, Porter

11:30 p.m.: "Showtime" Shawn Porter makes his entrance with WWE champion Big E and Grammy-nominated Hip Hop artist Rapsody while Terence Crawford keeps it simple by walking alone to LL Cool J's "I'm Bad."

10:58 p.m.: Through six rounds, Esquiva Falcao, the 2012 Olympic silver medalist from Brazil, has been applying immense pressure to Patrice Volny. Volny tried to work from the outside but Falcao's persistence to throttle Volny from the inside racked up rounds. But a nasty clash of heads in the sixth round split Falcao open above the left eye. Falcao is in a lot of pain and it's likely this fight is going to be stopped. Yup, it's over. Main event is next.

10:22 p.m.: Janibek Alimkhanuly didn't have much trouble turning back the challenge of Hassan N'Dam. He chopped him down over the course of eight rounds to earn the TKO stoppage. N'Dam's best years as a contender are clearly behind him, while Alimkhanuly remains one to watch in the middleweight division. As the rounds wore on, it became target practice for Alimkhanuly. N'Dam offered little resistance and was routinely clocked by power punches and a hard left hand. The mounting damage was too much for referee Kenny Bayless and the fight was called at the 2:40 mark of the eighth.

9:37 p.m.: As expected, Muratalia mowed down Araujo with an exceptional display of body punching and aggression to pick up the fifth-round TKO.

9 p.m.: We're live from Las Vegas and the pay-per-view portion of Crawford-Porter will kick off with Raymond Muratalla and Elias Araujo competing in a lightweight showdown.

Terence Crawford vs. Shawn Porter start time
Date: Saturday, Nov. 20
Main card time: 9 p.m. ET | 6 p.m. PT
Main event: 11 p.m. ET | 8 p.m. PT (approx.)
Crawford and Porter are set to step into the ring at about 11 p.m. ET. The night will begin with early prelims at 6 p.m. ET, followed by the prelim card at 7 p.m. ET and the main card at 9 p.m. ET.
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.

Luka Doncic injury update: Mavericks superstar listed as doubtful against Suns with ankle injury

A big win over the Denver Nuggets was soured for the Dallas Mavericks in the final minute when Luka Doncic appeared to suffer an ankle injury.

After the game against Denver, Doncic is averaging 24.9 points, 8.3 rebounds and 7.9 assists on the season.

What's next for Doncic? Here's everything we know about his injury and the latest news on when he may return to the court.
What is Luka Doncic's injury?
The injury was sustained as the Mavericks superstar attempted to block an Austin Rivers layup. Rivers' body appeared to roll over the ankle of Doncic in the aftermath of the play.
The win improved Dallas to 9-4 on the season, good for third in the Western Conference.

Doncic was his usual dominant self in the win, finishing with 23 points, eight rebounds, 11 assists, two steals and a block across 37 minutes of play.

How long will Luka Doncic be out?
Doncic was unavailable for media postgame as he was undergoing treatment, with head coach Jason Kidd unable to give an immediate update.

“Luka walked off on his own power,” Kidd said.

“I think he got his lower left leg rolled up on, so we’ll see how he feels.”

The following day, The Athletic's Shams Charania reported that tests on Doncic's left ankle and knee "showed no damage." ESPN's Tim MacMahon added that his injury is believed to be "not too serious" and that he'll likely miss some time but hopefully not an extended stretch.

Doncic sat out the Mavs' loss to the Phoenix Suns on Nov. 17 and is doubtful for the team's rematch on Nov. 19.

Mavericks upcoming schedule 2021-22
Date Opponent Time (ET)
Fri, Nov. 19 at Phoenix 10:00 PM
Sun, Nov. 21 at LA Clippers 3:30 PM
Tue, Nov. 23 at LA Clippers 10:30 PM
Sat, Nov. 27 vs. Washington 8:30 PM
Mon, Nov. 29 vs. Cleveland 8:30 PM
Wed, Dec. 1 at New Orleans 8:00 PM
Doncic has been a durable player throughout the early portion of his career, playing all 13 games this season so far, after missing just six across the 72-game regular season in 2020-21.

Stay tuned for further updates from the team on the status of Doncic and his ankle.

CONCACAF 2022 World Cup Qualifying: Schedule, standings, TV for soccer Octagonal

We're now into the second half of the qualifying schedule and it's Canada at the top of the CONCACAF 2022 World Cup qualifying standings.

A 2-1 home win over Mexico allowed the Canadians to overtake the USA atop the eight-team table. Canada is the only remaining unbeaten team in qualifying as it continues to push to qualify for its first World Cup since 1986.

The USA (2nd, 15 points) and Mexico (3rd, 14 points), long the powers of the region, are now chasing. Meanwhile, Panama continued its surge with another dramatic come-from-behind victory to go level with Mexico on 14 points. The top three teams earn automatic berths to the World Cup, while fourth-place earns passage to a play-in series for one of the final spots in Qatar 2022.

The other half of the table is in precarious position. A group of three teams — Costa Rica (5th), Jamaica (6th), El Salvador (7th) — is now between 5-8 points behind Panama for fourth place. Meanwhile, it's looking unlikely that Honduras will be able to recover from its last-place point total. 

The first standings tiebreakers are (1) goal difference, (2) goals scored and (3) most points obtained from matches between teams that are tied. The full list of tiebreakers and results for Matchdays 1-7 follow at the bottom of this post.

CONCACAF World Cup Qualifying Standings & Results
Team PTS GP W L D GF GA GD

  1. Canada 16 8 4 0 4 13 5 +8
  2. USA 15 8 4 1 3 12 5 +7
  3. Mexico 14 8 4 2 2 11 7 +4
  4. Panama 14 8 4 2 2 11 9 +2
  5. Costa Rica 9 8 2 3 3 6 7 -1
  6. Jamaica 7 8 1 3 4 6 10 -4
  7. El Salvador 6 8 1 4 3 4 10 -6
  8. Honduras 3 8 0 5 3 5 15 -10
    Matchday 8
    Date Match
    Tues, Nov. 16, 2021 Jamaica 1 , USA 1 Highlights
    Tues, Nov. 16, 2021 Costa Rica 2 , Honduras 1 Highlights
    Tues, Nov. 16, 2021 Panama 2 , El Salvador 1 Highlights
    Tues, Nov. 16, 2021 Canada 2, Mexico 1 Highlights
    Matchday 9
    Date Match Time (ET) Stream
    Thurs, Jan. 27, 2022 Honduras vs. Canada TBD TBD
    Thurs, Jan. 27, 2022 USA vs. El Salvador TBD TBD
    Thurs, Jan. 27, 2022 Costa Rica vs. Panama TBD TBD
    Thurs, Jan. 27, 2022 Jamaica vs. Mexico TBD TBD
    Matchday 10
    Date Match Time (ET) Stream
    Sun, Jan. 30, 2022 Canada vs. USA TBD TBD
    Sun, Jan. 30, 2022 Honduras vs. El Salvador TBD TBD
    Sun, Jan. 30, 2022 Mexico vs. Costa Rica TBD TBD
    Sun, Jan. 30, 2022 Panama vs. Jamaica TBD TBD
    Matchday 11
    Date Match Time (ET) Stream
    Wed, Feb. 2, 2022 El Salvador vs. Canada TBD TBD
    Wed, Feb. 2, 2022 USA vs. Honduras TBD TBD
    Wed, Feb. 2, 2022 Mexico vs. Panama TBD TBD
    Wed, Feb. 2, 2022 Jamaica vs. Costa Rica TBD TBD
    Matchday 12
    Date Match Time (ET) Stream
    Thurs, March 24, 2022 Costa Rica vs. Canada TBD TBD
    Thurs, March 24, 2022 Panama vs. Honduras TBD TBD
    Thurs, March 24, 2022 Jamaica vs. El Salvador TBD TBD
    Thurs, March 24, 2022 Mexico vs. USA TBD TBD
    Matchday 13
    Date Match Time (ET) Stream
    Sun, March 27, 2022 Canada vs. Jamaica TBD TBD
    Sun, March 27, 2022 Honduras vs. Mexico TBD TBD
    Sun, March 27, 2022 El Salvador vs. Costa Rica TBD TBD
    Sun, March 27, 2022 USA vs. Panama TBD TBD
    Matchday 14
    Date Match Time (ET) Stream
    Wed, March 30, 2022 Panama vs. Canada TBD TBD
    Wed, March 30, 2022 Jamaica vs. Honduras TBD TBD
    Wed, March 30, 2022 Mexico vs. El Salvador TBD TBD
    Wed, March 30, 2022 Costa Rica vs. USA TBD TBD
    CONCACAF World Cup Qualifying results & highlights
    Matchday 1
    Date Match
    Thurs, Sept. 2, 2021 Canada 1, Honduras 1 Highlights
    Thurs, Sept. 2, 2021 Panama 0, Costa Rica 0 Highlights
    Thurs, Sept. 2, 2021 Mexico 2, Jamaica 1 Highlights
    Thurs, Sept. 2, 2021 El Salvador 0, USA 0 Highlights
    Matchday 2
    Date Match
    Sun, Sept. 5, 2021 Jamaica 0, Panama 3 Highlights
    Sun, Sept. 5, 2021 Costa Rica 0, Mexico 1 Highlights
    Sun, Sept. 5, 2021 El Salvador 0, Honduras 0 Highlights
    Sun, Sept. 5, 2021 USA 1, Canada 1 Highlights
    Matchday 3
    Date Match
    Wed, Sept. 8, 2021 Canada 3, El Salvador 0 Highlights
    Wed, Sept. 8, 2021 Panama 1, Mexico 1 Highlights
    Wed, Sept. 8, 2021 Costa Rica 1, Jamaica 1 Highlights
    Wed, Sept. 8, 2021 Honduras 1, USA 4 Highlights
    Matchday 4
    Date Match
    Thurs, Oct. 7, 2021 USA 2, Jamaica 0 Highlights
    Thurs, Oct. 7, 2021 Honduras 0, Costa Rica 0 Highlights
    Thurs, Oct. 7, 2021 Mexico 1, Canada 1 Highlights
    Thurs, Oct. 7, 2021 El Salvador 1, Panama 0 Highlights
    Matchday 5
    Date Match
    Sun, Oct. 10, 2021 Panama 1, USA 0 Highlights
    Sun, Oct. 10, 2021 Jamaica 0, Canada 0 Highlights
    Sun, Oct. 10, 2021 Costa Rica 2, El Salvador 1 Highlights
    Sun, Oct. 10, 2021 Mexico 3, Honduras 0 Highlights
    Matchday 6
    Date Match
    Wed, Oct. 13, 2021 USA 2, Costa Rica 1 Highlights
    Wed, Oct. 13, 2021 Canada 4, Panama 1 Highlights
    Wed, Oct. 13, 2021 Honduras 0, Jamaica 2 Highlights
    Wed, Oct. 13, 2021 El Salvador 0, Mexico 2 Highlights
    Matchday 7
    Date Match
    Fri, Nov. 12, 2021 Honduras 2 , Panama 3 Highlights
    Fri, Nov. 12, 2021 USA 2 , Mexico 0 Highlights
    Fri, Nov. 12, 2021 Canada 1 , Costa Rica 0 Highlights
    Fri, Nov. 12, 2021 El Salvador 1 , Jamaica 1 Highlights
    How CONCACAF World Cup Qualifying works
    Eight nations from the CONCACAF region (North America, Central America and the Caribbean) are competing for three automatic berths to the 2022 Qatar World Cup in the final "octagonal" qualifying round.

The eight countries are facing off in a round-robin format with each team playing the other seven opponents once at home and once on the road. The 14 total matches for each national team began in September 2021 and will wrap up in March 2022.

The top three finishers will earn automatic berths to Qatar, while the fourth-place team will head to an intercontinental playoff with a final ticket to Qatar on the line. Here are the standings tiebreakers for teams even on points:

Goal difference in all group matches
Most goals scored in all group matches
Most points obtained from group matches between teams concerned
Goal difference from group matches between teams concerned
Most goals scored in group matches between teams concerned
Goals scored away from home (if two teams tied)
Discipline points (based on yellow/red cards)
Drawing of lots by FIFA
The Qatar World Cup will be played from Nov. 21 to Dec. 18, 2022.