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Photo: 1001slide / NASA / Getty Images -

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Illustration: Denis-Art / Getty Images Scientists Finally Found Something That Can Kill a Tardigrade
Adorable, freaky, and indestructible. Well, almost.
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NASA's Artemis II. Photo: Joe Raedle/Getty Images NASA Scrapped Its Plan to Put Astronauts on the Moon With Artemis III
We’ll get back there eventually. Maybe.
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NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Roman Tkachenko What Built the Dusty Red ‘Snowman’ Floating in Space?
When NASA’s New Horizons flew past Arrokoth on New Year’s Day 2019, it captured humanity’s most distant close-up of a primordial object.
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3I/ATLAS Why Did Comet 3I/ATLAS Get So Much Brighter After Flying Past the Sun?
3I/ATLAS will soon fade from view as it exits the solar system, but not before bowing out with one final display of its classic weird-o behavior.
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Photo: mikiell / Getty Images Humans Are Going Back to the Moon, but We Need to Know More About Moonquakes First
Landing on the wrong spot could be bad!
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Laurent Emmanuel/Contributor/Getty Images The Moon Is Shrinking. Here’s What That Means for the Future.
The moon, it seems, is most definitely shrinking. And that means it’s going to be experiencing a lot more tectonic activity in its future.
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Nazarii Neshcherenskyi/Getty Images Did Volcanoes on Mars Erupt During the Last Days of the Dinosaurs?
While Earth was still in its dinosaur era and edging into mammal history, Mars still had volcanic activity in the Tharsis region.
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Photo: buradaki / Getty Images -

Photo: ratpack223 / Getty Images 7 Space Objects That Could Wipe Us Out and How Close They’ve Come to Earth
Never forget we’re on a spinning rock in a sea of nothingness.
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Comet 41P/Tuttle-Giacobini-Kresák This Comet Suddenly Started Spinning Backward Near the Sun, and Scientists Don’t Know Why
As Comet 41P/Tuttle-Giacobini-Kresák barreled toward the sun, it appeared to have stopped entirely… and then it flipped.