Northern lights could reach New York and Idaho this weekend as speedy solar wind races toward Earth

NASA's destroyed Swift Observatory took one of the best-ever photos of bright Andromeda

Fireballs could light up the sky tonight as the Southern Taurids peak

NASA unveils $10B moon base contract as SpaceX, Blue Origin join lunar gold rush

Astrophysicist: Large object collision would ‘destroy’ International Space Station

Coverage tracks intense speculation and expert warnings after a mysterious object appeared near the International Space Station.

Hubble finds dwarf galaxies are missing most of their oxygen

Hubble observations reveal nearby dwarf galaxies are missing most of their oxygen.

China detects rare radio signal from distant star system

Scientists in China detect an unusual radio signal from a star system 238 light-years away, sparking debate over alien technology.