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Using ultracold temperatures and some steel ball bearings, scientists have created a brand-new, bizarre form of ice that has the same density of liquid water.

The ice, known as medium-density amorphous ice, fits into a gap in the annals of frozen water that scientists weren’t sure would ever be filled. Unlike the crystalline ice that forms naturally on Earth, the newly created ice doesn’t have an organized molecular structure. Instead, its molecules are in a chaotic mismatch, more like glass — a state known as amorphous. Other types of amorphous ice have been made before, but they’ve been either much less dense or far denser than liquid water. This new Goldilocks version of amorphous ice is right in the middle, almost exactly matching liquid water’s density, researchers explained in a new study published in the journal Science today (Feb. 2).

“It’s something completely new,” said study senior author Christoph Salzmann (opens in new tab) , a professor of physical and materials chemistry at University College London.Grinding ice

When ice freezes normally on Earth, its molecules stack into an organized crystalline structure. This crystalline ice is one of the weird quirks of H2O, because it floats on liquid water in its solid state rather than sinking. This is due to the relatively big gaps in the crystal structure of water ice, compared with other materials that form denser structures when they crystallize. 

When properly manipulated, though, liquid water can also freeze in a disorganized, amorphous state. The first of these states, low-density amorphous ice, was discovered in the 1930s. It’s made by depositing water vapor on very cold surfaces. This process happens naturally in space, Salzmann said, so low-density amorphous ice may be the most common form of ice in the universe. 

In the 1980s, researchers discovered that they could also make high-density amorphous ice by compressing regular ice at very low temperatures. But no one ever had ever made amorphous ice with a medium density — that is, until Salzmann and his colleagues had a “crazy Friday afternoon idea.” They decided to try ball milling ice. 

A ball mill is a device kind of like a very advanced cocktail shaker. A material is put into a chamber with stainless-steel balls and shaken or turned until the material is ground up. Ball milling is used in many industries, but it’s particularly good at creating amorphous materials and at grinding soft, frozen materials into powders, Salzmann said. 

“We said, ‘Why don’t we ball mill ice and see what happens?'” Salzmann said.Weird properties

The researchers expected that the ball mill would just break the ice crystals into smaller ice crystals. But that’s not what happened. Instead, the tumbling steel balls sheared and compressed the ice crystals, shoving them into a new state of disorganization. The result? Medium-density amorphous ice.

Computer modeling showed that the ice starts in a nice, crystalline state, its hydrogen bonds forming a hexagonal lattice. The random shearing from the ball-milling pushes these hydrogen bonds this way and that, leaving them pointing up and down in a chaotic zigzag.

The new form of ice forms at 77 kelvins, or minus 321 degrees Fahrenheit (minus 196 degrees Celsius). It has some odd properties beyond its density of 1.06 grams per cubic centimeter (0.037 ounces per 0.06 cubic inches).. (Water has a density of 1 gram per cubic centimeter, or 0.035 punches per 0.06 cubic inches.) Among them, Salzmann said, is that when the researchers compressed the medium-density ice and heated it to minus 185 F (minus 120 C), the ice recrystallized, releasing a large amount of heat.

“With other forms of [amorphous] ice, if you compress them and you release the pressure, it’s like nothing happened,” Salzmann said. “But the MDA [medium-density amorphous ice] somehow has this ability to store the mechanical energy and release it through heating.”Related stories—Why is water important?

—Does pure water exist?

—New study turns understanding of ice upside-down

Medium-density amorphous ice might occur naturally on the ice moons of gas giant planets, Salzmann said, where the gravitational forces of the enormous worlds compress and shear the moons’ ice. If so, the mechanical energy stored in this form of ice could influence the tectonics on these Hoth-like moons.

Understanding medium-density amorphous ice could also help researchers understand liquid water better more generally, Salzmann said. Water is odd not only because its crystalline form floats but also because it has other unique properties, like high surface tension and high melting and boiling points. Scientists still debate the nature of water at extremely low temperatures. Any debate now needs to take into account medium-density amorphous ice, Salzmann said.

“A lot of our understanding of liquid water was built on the pillars that there is low-density and high-density amorphous ice,” he said. “How does the medium-density amorphous ice fit into that picture?”

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Cindric docked points, fined for spinning Dillon

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Cindric docked points, fined for spinning Dillon

CHARLOTTE, N.C. — Austin Cindric was docked 50 points and fined $50,000 by NASCAR on Wednesday for intentionally spinning Ty Dillon in last weekend’s Cup Series race at Circuit of the Americas.

Dillon moved Cindric up the track early in the race and Cindric quickly retaliated by hooking Dillon in the right rear, spinning Dillon’s car.

NASCAR has made clear they will not tolerate drivers hooking competitors in the right rear to spin them because of the potential hazards. Bubba Wallace and Chase Elliott have both previously been suspended for similar actions.

The penalty drops Cindric of Team Penske from 11th to 35th in the standings heading into this weekend’s race at Phoenix Raceway.

NASCAR fined Carson Hocevar $50,000 and penalized him 25 points for intentionally wrecking Harrison Burton last year. Hocevar hooked Burton in the right rear while under caution at Nashville Superspeedway.

One of the reasons Cindric was not suspended, per a NASCAR official, is because it happened on a road course with lower speeds and tight confines — and the result didn’t draw a caution flag.

Wallace and Elliott both hooked other drivers on ovals with higher speeds that led to cautions.

In additional penalties announced Wednesday, NASCAR said two members of Kyle Larson‘s pit crew had been suspended two races for a tire coming off his car during last weekend’s Cup race at COTA. Brandon Johnson, the jackman, and front tire changer Blaine Anderson were both suspended.

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Briscoe wins appeal over spoiler at Daytona 500

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Briscoe wins appeal over spoiler at Daytona 500

CHARLOTTE, N.C. — Chase Briscoe and Joe Gibbs Racing won their appeal Wednesday when the National Motorsports Appeals Panel said his Toyota did not have an illegally modified spoiler when he won the Daytona 500 pole.

The victory restores the 100 points and 10 playoff points NASCAR had penalized Briscoe for the spoiler violation. The team also gets its 100 points and 10 playoff points back, and crew chief James Small’s four-race suspension was rescinded, as was the $100,000 fine to the team.

Briscoe is now tied for 14th in the season standings with Carson Hocevar headed into Sunday’s race at Phoenix Raceway. They are one point ahead of Kyle Larson, who is 16th in the season standings.

“The panel believes that the elongation of some of the holes on the number 19 Cup car spoiler base is caused by the process of attaching that specific spoiler base to the rear deck and not modification of the single source part,” the panel wrote.

Joe Gibbs said he was appreciative of the process “NASCAR has in place that allowed us the opportunity to present our explanation of what led to the penalty issued to our No. 19 team.

“We are thankful for the consideration and ruling by the National Motorsports Appeals Panel,” the team owner added. “It is obviously great news for our 19 team and everyone at Joe Gibbs Racing. We look forward to focusing on the remainder of our season starting this weekend in Phoenix.”

Briscoe also thanked the panel and NASCAR on social media “for giving us the option to show our evidence.” He also thanked Joe Gibbs Racing for preparing his car for his debut season with the team.

The appeals panel consisted of former motorsports marketing executive Dixon Johnston, former Speed Channel president Hunter Nickell and former South Boston Speedway general manager Cathy Rice.

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NASCAR countersues in dispute over charters

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NASCAR countersues in dispute over charters

CHARLOTTE, N.C. — NASCAR’s revenue-sharing charter system is under threat of being disbanded according to a Wednesday counterclaim filed by the stock car series against Michael Jordan-owned 23XI Racing and Front Row Motorsports that singles out Jordan’s longtime business manager.

The contentiousness began after more than two years of negotiations on new charter agreements — NASCAR’s equivalent of a franchise model — and the 30-page filing contends that Jordan business manager Curtis Polk “willfully” violated antitrust laws by orchestrating anticompetitive collective conduct in connection with the most recent charter agreements.

23XI and Front Row were the only two organizations out of 15 that refused to sign the new agreements, which were presented to the teams last September in a take-it-or-leave-it offer a mere 48 hours before the start of NASCAR’s playoffs.

The charters were fought for by the teams ahead of the 2016 season and twice have been extended. The latest extension is for seven years to match the current media rights deal and guarantee 36 of the 40 spots in each week’s field to the teams that hold them, as well as other financial incentives. 23XI and Front Row refused to sign and sued, alleging NASCAR and the France family that owns the stock car series are a monopoly.

NASCAR already has lost one round in court in which the two teams have been recognized as chartered organizations for the 2025 season as the legal dispute winds through the courts.

What is NASCAR counterclaiming?

In the new counterclaim, Polk is repeatedly singled out as the ringleader against the current charter proposals. NASCAR attorney Christopher Yates went so far as to tell The Associated Press that Polk, who in addition to being Jordan’s business manager is a co-owner of 23XI along with three-time Daytona 500 winner Denny Hamlin, does not understand the NASCAR business model.

“Curtis Polk basically orchestrated and threatened a boycott of one of the qualifying races for a major event and others did not go along with him,” Yates said. “He got other teams to boycott a meeting that was required by the charter. When you have a threatened boycott of qualifying races that are covered by media that’s not a good thing for other race teams, not a good thing when you are trying to collectively grow the sport.”

The qualifying race in question was the 2024 pair of 150-mile duels that set the field for the Daytona 500.

“I don’t think Mr. Polk really understands the sport,” Yates told the AP. “I think he came into it and his view is it should be much more like the NBA or other league sports. But it’s not. No motorsport is like that. He’s done a lot of things that might work in the NBA or might be OK in the NBA but just are not appropriate in NASCAR.”

Who is violating the antitrust act?

NASCAR’s complaint alleges “the undisputed reality is that it is 23XI and FRM, led by 23XI’s owner and sports agent Curtis Polk, that willfully violated the antitrust laws by orchestrating anticompetitive collective conduct in connection with the terms of the 2025 Charter Agreements.”

“It is truly ironic that in trying to blow-up the Charter system, 23XI and FRM have sought to weaponize the antitrust laws to achieve their goals,” the counterclaim says, alleging Polk’s threats are “attempting to misuse the legal system as a last resort to secure new terms.”

Bob Jenkins, an entrepreneur, owns Front Row Motorsports and joined 23XI in the lawsuit when he declined to sign the 2025 charter agreement last September.

NASCAR’s counterclaim asks for an injunction eliminating guaranteed starting spots for charter teams. NASCAR wants the four combined charters held by 23XI and Front Row before the lawsuit to be returned to NASCAR, and it wants to dissolve the two charters each team purchased ahead of the 2025 season for their own individual expansion.

“There’s a misperception out there that somehow 23IX and Front Row might achieve something that other teams can take advantage of, and that’s just not right,” Yates told the AP. “This is not going to be a renegotiation. NASCAR has no intent of renegotiating the terms of the charter. Front Row and 23XI are threatening the charter system and its continuation, and NASCAR is fine without the charter system.

“The charter system was created at the request of the teams. That was before 23XI and Curtis Polk’s time, I don’t think they understand that history. But if they succeed with their lawsuit and the charter system goes away, that’s OK.”

What do 23XI and Front Row want?

Yates told the AP he’s asked Jeffrey Kessler, the attorney representing 23XI and Front Row, what is it the two teams want and cannot get a straight answer.

“The mere fact that the lawsuit calls the system into question, I really think 23XI and Front Row are being pretty selfish in terms of what they are trying to do, and I don’t think they are taking into account the 32 teams that have signed the charters and think it is a good deal for them,” Yates said. “Do some of them think they should have gotten more? I’m sure. Does NASCAR think it should have gotten more? Absolutely. But NASCAR does not see the charter system as necessary.”

Jordan has said he’s suing NASCAR on behalf of all the teams so that even the smallest ones can receive equal footing in terms of benefits as a participant in the top motorsports league in the United States.

Among the improvements in the 2025 charters is a more equitable revenue share, but missing is the demand that teams wanted the charters to become permanent. NASCAR at its discretion can claw back charters from underperforming teams or eliminate the system completely. Yates said NASCAR has no intention of renegotiating the charters signed in September by 13 organizations, nor did he see a scenario in which NASCAR settles the lawsuit.

“Polk and 23XI’s other owners openly professed that they wanted to change NASCAR’s economic model by demanding more money for the teams from NASCAR media revenues, instead of teams competing against each other,” Yates said. “However, 23XI and FRM did not merely reject the terms of the 2025 Charters. Rather, those teams embarked on a strategy to threaten, coerce, and extort NASCAR into meeting their demands for better contract and financial terms.”

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