Meteorite hunters scour Ohio for fragments of 7-ton space rock that crashed into Earth

Meteorite hunters fanned out across a wide swath of Ohio on Thursday, hoping to collect fragments of an estimated 7-ton (6,350 kilograms) space rock that crashed into Earth this week after a dazzling fireball that was seen from hundreds of miles away.

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NASA’s Artemis missions promise a return to the moon—but when?

NASA’s Artemis II mission plans to fly around the moon and back this April. Four astronauts will board the mammoth Space Launch System (SLS) rocket for the test flight, spending 10 days off-Earth. They won’t be touching down—this mission is intended to pave the way for humans to once again place their boots in the […]

Project Hail Mary is packed with hard science. An astrophysicist breaks it down

As an astrophysicist, my world revolves around the wonders of space and the mysteries of the universe. This means I can be a tough critic of science fiction books and films that explore these topics.

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‘Miracle’: Europe reconnects with lost spacecraft

The European Space Agency announced Thursday it has re-established communication with a spacecraft that is part of its Proba-3 mission, after losing contact with the satellite a month ago.

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Ex-LAPD commander fired over public intoxication arrest wins $5.7M in discrimination suit

Nicole Mehringer alleged the LAPD held her to a stricter standard after an alcohol-related arrest, while male officers in similar situations kept their jobs or retired without discipline

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JUICE is planning to do science on Jupiter’s ‘minor’ moons too

The European Space Agency’s (ESA’s) Jupiter Icy Moons Explorer (JUICE) probe is on its (very long) way to Jupiter, and will finally arrive at the King of Planets in 2031. Its primary mission is to focus on the “big three” icy moons—Ganymede, Europa, and Callisto. But while JUICE is busy mapping Ganymede’s magnetic field, it […]

Gravitational waves leave imprints on light emitted by atoms, theoretical study predicts

Gravitational waves are ripples in spacetime produced by violent cosmic events, such as the merging of black holes. So far, direct detections have relied on measuring tiny distance changes over kilometer-scale instruments. In a new theoretical study published in Physical Review Letters, researchers at Stockholm University, Nordita, and the University of Tübingen propose an unconventional […]

The moon’s going to get crowded. We should protect our heritage on it while we still can

In 1959, the Luna 2 probe from the Soviet Union became the very first human-made object to reach our closest celestial neighbor. In the decades since, we have been leaving footprints—both literally and figuratively—all over the moon. Today, there are over 100 metric tons of human-made material resting on the moon’s surface—everything from advanced cameras […]

No exotic physics needed: A new formation mechanism of skyrmions inside magnets

Skyrmions, in which electron spins inside a magnet are arranged like vortices, are a key structure in next-generation spintronics technology. KAIST researchers have shown that skyrmions can form using only the fundamental physical interactions within magnets, without requiring special physical conditions.

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‘Mini earthquakes’ turn tiny chips into radio signal powerhouses

From GPS satellites to mobile networks, modern technology relies on ultra-precise radio signals. Engineers have long tried to generate them on chips using interactions between light and sound, but the effect was too weak. University of Twente researchers now show in a paper published in Nature Photonics that a thin glass layer creates “mini-earthquake” surface […]

Man re-arrested for 36th time after Las Vegas judge grants him pretrial release over sheriff’s objections

Metro Police stated the man has fled from law enforcement, once pointed a gun at an officer and was convicted of involuntary manslaughter, among other offenses

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A multi-lane highway for light: Topology helps build more robust photonic networks

Penn-led researchers have shown for the first time that multiple, information-carrying light signals can be safely guided through chip-based, reconfigurable networks using topology, the esoteric branch of mathematics that says donuts and mugs are identical. Because topological properties remain stable even when objects are deformed—hence the field equating mugs and donuts, since both have one […]

The discovery of a buried delta on Mars could boost the search for life

There’s more evidence that water once flowed on Mars with the discovery of an ancient river delta deep below the surface. NASA’s Perseverance rover found it more than 35 meters beneath Jezero Crater using ground-penetrating radar. Perseverance was launched in 2020 to search for signs of ancient life on the red planet. Since landing in […]

The best places to look for alien life: Scientists identify 45 Earth-like worlds to explore for a ‘Project Hail Mary’

If we’re to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have identified just under 50 rocky worlds most likely to be habitable out of the more than 6,000 exoplanets discovered so far.

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DESI maps C-19, an extremely metal-poor Milky Way stellar stream

Using the Mayall 4-meter telescope at Kitt Peak National Observatory, an international team of astronomers has observed C-19—an extremely metal-poor stellar stream in the Milky Way’s halo. Results of the observational campaign, published March 11 on the arXiv pre-print server, provide crucial insights into the properties of this stellar stream.

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