Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing link in planet formation.

Planet 9 sits at the edge of scientific imagination, promising either an epic expansion of the Solar System or a lesson in ...