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Potentially deadly 'chirping waves' detected in baffling location near Earth, and scientists are stumped
By Ben Turner published
Chorus waves are mysterious, chirping signals produced by spiraling plasma inside our planet's magnetic field. But a new detection suggests scientists may understand less about them than first thought.

What's inside Earth quiz: Test your knowledge of our planet's hidden layers
By Sascha Pare published
Quiz How's your knowledge of Earth's geology? Flat, round or global?

Scientists discover 'sunken worlds' hidden deep within Earth's mantle that shouldn't be there
By Harry Baker published
A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's mantle. These anomalies are surprisingly similar to sunken chunks of Earth's crust but appear in seemingly impossible places.

James Webb telescope spots more than 100 new asteroids between Jupiter and Mars — and some are heading toward Earth
By Sharmila Kuthunur published
Astronomers analyzing archival images from JWST have discovered an unexpectedly vast population of the smallest asteroids ever seen in the asteroid belt between Mars and Jupiter.

Why does Earth look flat if it's really round?
By Kelly R. MacGregor published
It's all about perspective: The higher you go, the more you can see the curve.

'Spectacular' asteroid blazes over Siberia just hours after it was detected
By Pandora Dewan published
Asteroid C0WEPC5 entered Earth's atmosphere at 1:15 a.m. local time on Dec. 4 over northeastern Siberia.

Mass extinctions make life 'bounce back stronger,' controversial study suggests
By Grace van Deelen, Eos.org published
Large-scale disruptions to life may ultimately increase ecological complexity over geologic timescales, though the risk of extinction always looms.

Samples of 'alien' asteroid Ryugu are crawling with life — from Earth
By Ben Turner published
Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But they almost certainly came from Earth.
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