NASA's James Webb Space Telescope has discovered evidence of a giant planet orbiting a star in the solar system closest to ...

If you’re like most people, you’ve never heard of it. Meet the ringed asteroid-comet hybrid prowling the outer reaches of the ...

Astronomers have used NASA's James Webb Space Telescope to find strong evidence for a planet orbiting a star in the triple ...

The closest exoplanets to the Solar System are around the red dwarf Proxima Centauri. This little star is orbiting two bigger ...

Alpha Centauri A, four light-years from Earth, may host a gas giant. If confirmed, no Earthlike planets orbit in the star’s habitable zone.

Researchers may have discovered a gas giant orbiting the star Alpha Centauri A, and it appears to be in the star's habitable ...

This rare planetary alignment will be visible from August 10 but will be best viewed later in the month. Here’s everything ...

We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves ...

Uncover fascinating and lesser-known facts about our solar system! Discover why you can't stand on Uranus, which moon has ...

A Dartmouth-led study identifies potentially more that 300 small galaxies orbiting low-mass systems known as dwarf ...

Pluto’s mysterious far side may conceal towering ice formations, according to research offering clues about the dwarf ...

As August unfolds, skywatchers are in for a rare treat — the brilliant conjunction of Venus and Jupiter. These two celestial ...