Comets that bounce around the universe could be delivering the ingredients for life to alien planets

Tech Insider
An artist's impression of an exoplanet backlit by its star
An artist's impression of exoplanet HD 189733b, which circles its star in 2.2 days.

NASA/Goddard Space Flight Center/Conceptual Image Lab

Dire wolves, camels, and other extinct giant mammals that used to live in North America

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Three woolly mammoths stand in a field of brownish plants in an artist rendering

Aunt Spray/iStock/Getty Images Plus

Scientists used a galaxy cluster that warps space-time as a giant magnifying glass to find 2 distant galaxies

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image of space with cluster of galaxies and stars everywhere
James Webb Space Telescope's view of Pandora's Cluster.

NASA, ESA, CSA, Ivo Labbe (Swinburne), Rachel Bezanson (University of Pittsburgh)

Chinese scientists created a robot that can make oxygen on Mars. It could allow humans to someday live on the red planet.

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An artist's impression shows an astronaut kneeling down on Mars as a rocket is shown in the background. The landscape is barren and dusty.
An artist's impression of what an astronaut might look like on Mars.

peepo/Getty Images

Chatbots just showed scientists how to make social media less toxic

Tech Insider : Politics
A scientist experiments with AI.
Researchers built a fake Twitter and filled it with 500 bots. What happened next surprised them.

Ian Grandjean for Insider

Parasitic worms highjack their hosts' free will, and scientists finally think they know how

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A worm, Chordodes fukuii, and a mantid, Tenodera angustipennis, pose with a leaf for scale.
In a fight between this measly worm and majestic mantis, who do you think would win? You might be surprised.

Takuya Sato

Rats could breed too quickly for NYC's successful new extermination method to keep up

Tech Insider
A rat climbing up a rope.
Climate change is threatening a lot of species, but rats don't seem to mind a warming world.

CreativeNature_nl / Getty Images

Orcas sunk another boat and sailors are resorting to some very weird and wild ways to save their yachts

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The fin and head of a killer whale surface on the foreground between two small boats with forested mountains behind them.
An orca slightly breaches the water between two boats in Alaska.

Joel Rogers/Getty images

How did the zebra get its nicely patterned stripes? The answer may come from mathematician Alan Turing.

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zoo captivity zebra
A zebra's stripes help it hide from predators, but how do they form so evenly spaced?

Reuters/Jose Luis Gonzalez

A volcano could erupt in Iceland within hours. Experts say you shouldn't cancel your flights — yet

Tech Insider
Blue Lagoon in Grindavik, Iceland

Getty/VW Pics

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