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 sprawling helium cloud known as an exosphere. This exosphere stretches ...

Exoplanets are far too small and dim compared with their parent star to be observed directly. Instead, space- and ...

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

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

The results show a circular “hotspot” on the side of the planet that always faces its star, surrounded by a cooler ring at ...

Scientists have detected the first direct evidence of a coronal mass ejection from a star beyond our Sun, specifically the M dwarf StKM1-1262. This ma ...

This planet lies about 500 light years from the Earth and its 10 percent larger than our living planet. Though it has a ...

Using images from the James Webb Space Telescope (Webb), an international research team including Western's Stanimir Metchev has discovered new ...