A mysterious rock orbiting Earth appears to be a chunk of the moon that was blasted away by a meteorite

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A painting represents a large grey asteroid, Kamo`oalewa, floating in space near the moon. The Earth is seen in the background.
An artist's illustration of near-Earth asteroid Kamo`oalewa floating in space between the moon and our planet.

Addy Graham/University of Arizona

Video shows weird 'kelping' behavior in whales. Scientists think it's the animals using seaweed to exfoliate.

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A whales fin coming out of the water, draped in a thick tangle of kelp.
The researchers reported over 100 times they caught the whales kelping. Sometimes they rubbed the seaweed on their fins, but other times, they put it on their face and tail.

Kristin Campbell with Newport Coastal Adventure

How climate change contributed to the collapse of the Roman Empire and 7 other ancient civilizations

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A photo of an ancient Roman amphitheater in Tunisia.
An ancient Roman amphitheater in Tunisia.

DEA / G. DAGLI ORTI/Getty Images

A 14-year-old won $25,000 for his simple solution to treat skin cancer. Just use soap.

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Heman Bekele smiling with his trophy next to his mentor Deborah Isabelle
Bekele with his mentor, Deborah Isabelle, who was assigned by 3M as part of the competition.

3M

Switzerland has a stunningly high rate of gun ownership — here's why it doesn't have mass shootings

Tech Insider : Politics
Switzerland Swiss army honor guard soldiers troops military
Members of the Swiss federal army's honor guard in October 2012.

REUTERS/Thomas Hodel

How to spot a corporate psychopath and avoid hiring a candidate with sociopathy

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American Psycho Patrick Bateman
Christian Bale's character in American Psycho.

Lionsgate Films

Researchers reconstruct the face of a teenage mummy believed to have been sacrificed in an Inca ritual more than 500 years ago

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A close-up of Juanita's reconstructed face.
The reconstruction of the face of a young woman who was found frozen and mummified near the summit of Mount Ampato in the Peruvian Andes after being sacrificed in a ritual more than 500 years ago, in Arequipa, Peru.

Manuel Ballivian Figueroa/Catholic University of Santa Maria via AP

13 mummified mice in Mars-like environments atop 20,000-foot volcanoes have stumped scientists, who don't know why mice would climb to such harsh heights

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a mummified mouse is a mangled ball of fur with bones poking out on a white surface next to a ruler showing it's about two inches long
One of the 13 mangled, mummified mice that researchers found on top of Andean volcanoes.

Marcial Quiroga-Carmona

Researchers discovered a hidden Antarctic landscape under a layer of ice over a mile thick that shows how different the continent looked millions of years ago

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A small boat in the water near the Admiralty Mountains in the east of Antarctica
The Admiralty Mountains loom in eastern Antarctica.

Andrew Peacock via Getty Images

The US went from having 356 to 10,000 roundabouts in 2 decades, and a transportation engineer explains why they're so much better than traffic lights

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Roundabout Romania
A roundabout has less potential conflict points than an intersection.

CallinStan/iStock

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