These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

Far beyond Neptune lies a vast and unsettling frontier filled with dwarf planets, ancient ice worlds, collapsing atmospheres, strange moons, and orbits that take thousands of years to complete. From ...

For life to develop on a planet, certain chemical elements are needed in sufficient quantities. Phosphorus and nitrogen are ...

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...

Hubble observations reveal a giant, turbulent planet-forming disk that may reshape theories of how planetary systems develop.

Since the Kepler Space Telescope began its prowl for exoplanets in 2009, it has uncovered a strange pattern among these alien worlds: their orbits follow a consistent rhythm. If one planet in a system ...

In theory, it could happen – one of the very first solutions to the three-body problem was this scenario. But it is very unlikely to be stable over time. You need the stars to have near equal mass and ...

Have you ever wondered if there is life on another planet? Exoplanets may hold the key to this question.