We thought we understood planets, but the planetary disk chemistry of far-away XUE 10 is completely changing our conception ...

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Astronomers detected a bright signal, coming from deep inside a dust disc, that is likely newborn planet HD 135344B still ...

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

The growth spurt hints that the free-floating object evolves like a star, providing clues about rogue planets’ mysterious origins.

Starfleet's mission is one of peace in "Star Trek," but the idea of it comes from military history, and that's reflected in ...

Companies borrowed a record $207B in the US investment-grade market in Sept., more than Wall Street's top underwriter of the ...

Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with ...

The James Webb Space Telescope will look for biosignatures and more when it observers the Trappist-1 system's rocky planets. Credit: NASA Theft of Guy Fieri's tequila sheds light on a growing new ...