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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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Rocket Lab stock jumps 8%, building on strong two-month rally

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Rocket Lab stock jumps 8%, building on strong two-month rally

An Electron rocket launches the Baby Come Back mission from New Zealand on July 17, 2023.

Rocket Lab

Rocket Lab stock soared 8% Monday, building on a strong run fueled by space innovation.

Shares of the space infrastructure company have nearly doubled over the last two months following a slew of successful launches and a deal with the European Union.

The stock is up 63% year to date after surging nearly sixfold in 2024.

Last month, Rocket Lab announced a partnership with the European Space Agency to launch satellites for constellation navigation before December.

Rocket Lab also announced the successful launch of its 66th, 67th and 68th Electron rockets in June. The company successfully deployed two rockets from the same site in 48 hours.

Read more CNBC tech news

Rocket Lab competes with a growing list of companies in a maturing and increasingly competitive space industry with growing demand. Some of the main competitors in the sector include Elon Musk‘s SpaceX and Firefly Aerospace, which filed its prospectus to go public on Friday.

“For Electron, our little rocket, we’ve seen increased demand over the last couple of years and we’re not just launching single spacecraft — these are generally entire constellations for customers,” CEO Peter Beck told CNBC last month.

He said the company is producing a rocket every 15 days.

Beck, a New Zealand-native, founded the company in 2006. Since its debut on the Nasdaq in August 2021 through a merger with a special purpose acquisition company, the Long Beach, California-based company’s market value has swelled to more than $19 billion.

WATCH: Rocket Lab CEO Peter Beck: One thing I don’t worry about at night is demand

Rocket Lab CEO Peter Beck: One thing I don't worry about at night is demand

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Ford beat every supercar at Goodwood with a truck because EVs are just better

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Ford beat every supercar at Goodwood with a truck because EVs are just better

The Goodwood Festival of Speed happened this weekend, and Ford’s electric SuperTruck managed to beat every other vehicle, gas or electric, to the top of the hill.

The Goodwood Festival of Speed is a yearly event on the grounds of Goodwood House, a historic estate in West Sussex, England. The event started in 1993, and has become one of the largest motorsports festivals in the world.

Many companies attend Goodwood to debut new models, and enthusiasts or race teams will show off rare or customized vehicles or race unique cars.

One of the central features of the event is the Goodwood hillclimb, a short one-way race up a small hill on the property. The track is only 1.17mi/1.89km long, with a 304ft/92.7m uphill climb. It’s not a particularly taxing event – merely a fun way to show off some classic or unique racing vehicles.

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As is often the case, companies brought out several interesting EVs to the event, including Honda’s Super EV concept, the recently-unveiled Hyundai Ioniq 6N, and the upcoming Porsche Cayenne EV, still in camouflage after recently setting an SUV record at another UK hillclimb.

Many of these cars came just to show off, to do a demonstration run up the hill and join the company of the world’s most exotic hypercars.

But some cars show up for the glory, and join “the shootout,” the sprint up the hill for the best time.

And Ford didn’t come to show off, it came to win. And in order to win, it brought…. a truck.

The F-150 “SuperTruck” / Source: Ford

Ford’s SuperTruck is a one-off, 1,400+ horsepower prototype electric vehicle, supposedly based on the F-150 Lightning, but in fact bearing almost no similarity or even resemblance.

It’s been festooned with aerodynamic elements all about, lowered, equipped with race tires, and power output has been boosted to the aforementioned 1,400hp. It was driven by Romain Dumas, who Ford have been using since 2022 to drive their electric prototypes.

For the purposes of a hillclimb, perhaps the most important aspect is the Ford’s electric drive. Hillclimbs are a popular form of racing in Britain, and often consist of a short sprint up a small hill, showcasing acceleration and nimbleness more than anything.

Electric cars do well in this sort of racing due to their instant low-end torque, being able to jump off the line faster than the gas competition. They also tend to have plenty of torque, which helps with carrying them up the hills involved.

EVs do well on longer hillclimbs too, because as races reach higher and higher altitudes, gas cars suffer from reduced power due to less oxygen being available for combustion. EVs don’t suffer from this, so they tend to do well at, say, Pike’s Peak hillclimb – which, incidentally, Ford also brought its SuperTruck to, and also beat everybody at.

This year was not the first time Ford has brought a ridiculous electric chonker to Goodwood. Last year, it brought the SuperVan, which has a similar powertrain to the SuperTruck, and also beat everybody.

The SuperVan’s main competition last year was Subaru’s 670hp “Project Midnight” WRX, piloted by Scott Speed, who Dumas handily defeated by over two seconds, 43.98 to 46.07. And this year, the SuperTruck’s main competition was… the same Subaru, piloted by Speed, who Dumas handily defeated by just under two seconds, 43.23 to 45.03.

Ford did not, however, set an all-time record with the SuperTruck, in fact coming in fifth on the list of fastest runs ever. In front of it are two gas cars and two electric – the gas-powered Gould GR51, a tiny open-wheel race car, with a 42.90; an F1 car driven by Nick Heidfeld that set a 41.6 in 1999; the electric VW ID.R, also piloted by Dumas with a 39.90 (which broke Heidfeld’s 20-year record); and the all-time record holder the electric McMurtry Spierling “fan car,” with a mind-blowing 39.08 in 2019.

You’ll notice something similar about all of these – they’re all small racecars that are actually built for speed, whereas the truck is… a big truck. And yet, Ford still managed to beat every single challenger this year, with its big honker of an EV, because EVs are just better.

Watch the run in full below, starting at 9:34. Blink and you’ll miss it.

And now, if Ford continues its pattern, we’re looking forward to seeing the Super Mustang Mach-E at Goodwood next year, which did well this year at a tough Pike’s Peak, getting first in its class and second overall, likely due to inclement conditions that limited running to the lower portion of the course, limiting the EV’s high-altitude advantages.

Given the Super Mustang is a real racecar, and not a chonky truck, it might even give VW’s ID.R time a run for its money (but, frankly, really has no shot at the overall record, because the Spierling’s “fans” give it an absurdly unbeatable amount of downforce).


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Anthropic, Google, OpenAI and xAI granted up to $200 million for AI work from Defense Department

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Anthropic, Google, OpenAI and xAI granted up to 0 million for AI work from Defense Department

A view of the Pentagon on December 13, 2024, in Washington, DC. Home to the US Defense Department, the Pentagon is one of the world’s largest office buildings.

Daniel Slim | Afp | Getty Images

The U.S. Department of Defense on Monday said it’s granting contract awards of up to $200 million for artificial intelligence development at Anthropic, Google, OpenAI and xAI.

The DoD’s Chief Digital and Artificial Intelligence Office said the awards will help the agency accelerate its adoption of “advanced AI capabilities to address critical national security challenges.” The companies will work to develop AI agents across several mission areas at the agency.

“The adoption of AI is transforming the Department’s ability to support our warfighters and maintain strategic advantage over our adversaries,” Doug Matty, the DoD’s chief digital and AI officer, said in a release.

Elon Musk’s xAI also announced Grok for Government on Monday, which is a suite of products that make the company’s models available to U.S. government customers. The products are available through the General Services Administration (GSA) schedule, which allows federal government departments, agencies, or offices to purchase them, according to a post on X.

OpenAI was previously awarded a year-long $200 million contract from the DoD in 2024, shortly after it said it would collaborate with defense technology startup Anduril to deploy advanced AI systems for “national security missions.”

In June, the company launched OpenAI for Government for U.S. federal, state, and local government workers.

WATCH: US needs an allied strategy for AI investment in military and defense: Palantir

US needs an allied strategy for AI investment in military and defense: Palantir

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