On this planet, clouds emerge every morning and disappear by night as astronomers study the giant exoplanet WASP-94A b using ...

New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

A rare meteorite discovered in the Sahara Desert proves that our solar system almost had at least one extra planet. In a ...

Scientists may have found one of the main sources of rocky material for the solar system, forming diverse populations of baby ...

Two pairs of ‘rogue’ Jupiter-size, planet-like objects have been found in a large star-forming region in the Milky Way, a new ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

The early solar system may have been far more chaotic than we ever imagined. A new study published in Icarus suggests that ...

NASA’s next great space telescope will see 100 times more sky than Hubble. It’s about to arrive in Florida for launch in ...

Using a new technique that partly relies on artificial intelligence, researchers spotted potentially more than 10,000 new ...

Astronomers using NASA’s James Webb Space Telescope have uncovered a rare world unlike anything in our solar system — a giant planet about the size of Saturn with surprisingly Earth-like temperatures ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...