News
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AstronomyThe Milky Way’s most massive star cluster may have eaten a smaller cluster
Observations of newfound stars suggest how the gathering of stars at the galaxy’s core grew so big.
By Ken Croswell -
EnvironmentInvasive jumping worms damage U.S. soil and threaten forests
Also known as snake worms, these writhing wrigglers turn forest leaf litter into bare ground, changing soil composition and ecosystems as they go.
By Megan Sever -
SpaceA ‘lake’ on Mars may be surrounded by more pools of water
Radar data hint at patches of liquid water beneath Martian polar ice, but some urge caution in interpreting results.
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PhysicsA stop-motion experiment reveals supercooled water’s dual nature
Scientists found signs that water cooled well below freezing consists of two different arrangements of molecules.