Ganymede's auroras splinter into small, bright patches — structures that mirror features seen in Earth's own auroral displays ...
Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new ...
The "city killer" asteroid 2024 YR4 won't hit Earth or the moon when it whizzes by in 2032, the latest James Webb Space Telescope observations confirm.