The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary ...

Somewhere beyond Neptune, the Kuiper Belt is bent. Not by much, and not in a way any known planet can account for. A study ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner ...

Far beyond the reach of any spacecraft, a distant world glows with heat so intense that rock itself turns to vapor. In that ...

An artist's impression shows the "inside out" planetary system around the star LHS 1903. - ESA An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression shows the "inside out" planetary system around the star LHS 1903. - ESA An exoplanetary system about 116 ...

Dying stars may be wiping out nearby giant planets as they expand into red giants. Astronomers found that these close-in planets become increasingly rare around more evolved stars, suggesting many ...

Scientists have identified 45 Earth-like planets beyond our solar system that may support life. Using advanced space data, ...

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 ...

Astronomers have confirmed a new planet in one of the youngest solar systems ever found, thanks to University of Arizona ...

Exoplanet WASP-189b has revealed a direct chemical link between stars and planets, giving scientists new insight into how ...

The Solar System is a weird place filled with incredible physics and geological oddities that often break down in human terms. The way we learn the order of the planets is the classroom version of ...