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

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

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

Four-and-a-half billion years ago, a massive world, possibly as big as the moon or even Mars, orbited our sun before crashing ...

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

Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying ...

Another puzzle piece in how our solar system formed. The post Scientists Spot What Appears to Be a Ring-Shaped “Planet ...

A team of astronomers has found the strongest evidence yet that some planets outside our solar system may be magnetic. Using ...

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 ...