earth
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James Webb telescope spots more than 100 new asteroids between Jupiter and Mars — and some are heading toward EarthAstronomers 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.
By Sharmila Kuthunur Published
asteroids -
Why does Earth look flat if it's really round?It's all about perspective: The higher you go, the more you can see the curve.
By Kelly R. MacGregor Published
planet-earth -
'Spectacular' asteroid blazes over Siberia just hours after it was detectedAsteroid C0WEPC5 entered Earth's atmosphere at 1:15 a.m. local time on Dec. 4 over northeastern Siberia.
By Pandora Dewan Published
asteroids -
Mass extinctions make life 'bounce back stronger,' controversial study suggestsLarge-scale disruptions to life may ultimately increase ecological complexity over geologic timescales, though the risk of extinction always looms.
By Grace van Deelen Published
planet-earth -
Samples of 'alien' asteroid Ryugu are crawling with life — from EarthScientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But they almost certainly came from Earth.
By Ben Turner Published
asteroids -
Earth's '2nd moon' escapes our planet's orbit — will it ever return?The mini-moon 2024 PT5, which has been orbiting Earth for two months and is likely a chunk of the moon, will now drift away from our planet in an orbit around the sun.
By Ben Turner Published
the-moon -
What is plate tectonics?Blame plate tectonics for Earth’s mountains, earthquakes, volcanoes, and why its continents fit together like pieces of a giant jigsaw puzzle.
By Tiffany Means Last updated
geology -
'God of chaos' asteroid may be transformed by tremors and landslides during 2029 flyby of Earth, study findsWhen the 'God of chaos' asteroid Apophis makes an ultraclose flyby of Earth in 2029, our planet's gravity may trigger tremors and landslides that totally change the asteroid's surface.
By Deepa Jain Published
asteroids -
How many weeks are there in a year?We take our timekeeping rules for granted, but the history of these rules is long and complex.
By Richard Pallardy Published
human-behavior
