Collision liquified the 4th-largest asteroid, turning it into a dwarf planet
New images show a nearly perfect sphere without large craters.
Science // Science & Exploration
NASA shares details of lunar surface missions—and they’re pretty cool
But there is a catch if you want to bring back Moon rocks.
Forget poisoned candy and razor blades. Here’s the real Halloween horror
Halloween sadism is an urban legend, researchers say.
The Air Force’s secretive space plane returns after more than two years
The space plane spent 779 days, 17 hours in space.
Are you a mouse who can’t let go of fear? Your microbiome might be the problem
After antibiotics, mice still fear a tone that they should think is harmless.
A health care algorithm offered less care to black patients
Shows risks of making decisions using data that reflects inequities in American society.
American whiskeys leave behind a web-like “fingerprint” as they evaporate
Scotch whisky (minus the "e") doesn't produce these web-like patterns.
As the Arctic heats up, what’s in store for its food webs?
A remote Norwegian fjord has shown resilience—up to a point.
Man kept getting drunk without drinking. Docs found brewer’s yeast in his guts
His “auto-brewery syndrome” relapsed when he had pizza and soda.
The “original disruptors” go head to head in The Current War: Director’s Cut
Audiences finally get to see Director Alfonso Gomez-Rejon's original vision for the film.
Fossil bonanza paints detailed picture of mammals after dinosaur extinction
Treasure trove of fossils skyrockets our picture of post-extinction recovery.
Plastic invisibility cloak hides you from people with plastic brains
A YouTube video of disappearing body parts is very clever—but it's not invisibility.
Rocket Report: Would you buy Virgin Galactic stock? Rocket Lab goes lunar
"Small satellites will play a crucial role in science and exploration."
NASA sets launch date for Starliner mission to space station
As with all launch dates, some uncertainty remains.
Here’s what the people who claimed Google’s quantum supremacy have to say about it
"If you were invited to come here [Ars was], you probably read the leaked paper [we did]."
