"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Astronomers have directly spotted a rare young planet, WISPIT 2b, still forming within the gap of a dusty ringed disk around ...

Astronomers may have demoted Pluto from full-fledged planet to dwarf status, but evidence suggests the solar system may still ...

Astronomers make key discovery about Earth-like exoplanet 40 light-years away - The team spent over a year carefully correcting the data ...

Early results on the fourth planet from the TRAPPIST-1 star suggest it lost its original atmosphere to space long ago, and it ...

Mars is known for its barren desert landscape and dry climate. But two recent studies in the journals Nature and Science go ...

NASA's Voyager 1 launched 48 years ago in September 1977 on a decades-spanning journey to study the cosmos and search for ...

The textbook picture of how planets form—serene, flat disks of cosmic dust—has just received a significant cosmic twist.

Using data from NASA’s retired InSight lander, two separate teams of researchers found evidence of a sluggish Martian mantle ...

Test your knowledge with this short quiz about the cosmos, from planets to stars and beyond.