Martian glaciers are mostly pure ice across the Red Planet, suggesting they might potentially be useful resources for any explorers that might land there one day, a new study finds.
Astronomers may have discovered a rare type of binary star system, where one star used to orbit inside its partner.
Extraordinarily powerful light from gamma-ray bursts might help produce heavy elements from the outer shells of dying stars.
The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were carved by bullet-fast moon rocks.
The moon may have received a volcanic facelift, making it more than 100 million years older than rocks collected from its surface might suggest, a new study finds.
