After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Since then, over 6,000 confirmed exoplanets —or planets orbiting other stars—have been found, leading astronomers to conclude ...

The Chandra X-ray Telescope is investigating the habitability of exoplanets. NASA explains. Credit: NASA/CXC/A. Hobart ...

An international team including astronomers from the University of Geneva (UNIGE) and the National Center of Competence in ...

What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is ...

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a ...

Published in Nature Astronomy, the findings represent a first: while helium escape has been observed before, this is the ...

A FIERY hell-world that would instantly roast visitors alive has a vast lava ocean – and may be packed with rare gems. The ...

Europe's Vega C rocket launched for the sixth time ever today (Dec. 1), sending a powerful Earth-observation satellite to ...

The satellite is operated and run by Blue Skies Space, a U.K.-space science data company and was launched aboard SpaceX’s ...

Astronomers are just beginning to scratch the surface of the complex, and sometimes violent, relationships between planets ...