An artist's depiction of the halo of hot hydrogen gas surrounding the Milky Way galaxy (center) and two satellite galaxies, ...

The carbonates discovered in Gale Crater have partially decomposed, releasing some carbon dioxide back into the atmosphere, ...

To mark its 35th anniversary, the European Space Agency (ESA) is revisiting iconic Hubble images with updated data and ...

Photomicrograph of Basiceros enana, a newly discovered extinct dirt ant species preserved in Dominican amber, formed from ...