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AstronomyHere’s the best timeline yet for the Milky Way’s big events
A new study puts more precise dates on when the Milky Way formed its thick disk and collided with a neighboring galaxy.
By Ken Croswell -
PaleontologySpinosaurus’ dense bones fuel debate over whether some dinosaurs could swim
New evidence that Spinosaurus and its kin hunted underwater won't be the last word on whether some dinosaurs were swimmers.
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Science & SocietySocial media crackdowns during the war in Ukraine make the internet less global
Social media has become an important battleground, and now stands to split along geopolitical lines.
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PhysicsLevitating plastic beads mimic the physics of spinning asteroids
"Tabletop asteroids," buoyed by sound waves, hint at why some loosely bound space rocks have odd shapes and can’t spin too quickly.