Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover Earth-size planet TOI 700 e. It is "orbiting within the habitable zone of its star – the range of distances where liquid ...

Last week astronomers reported hints of biological activity on a distant planet, but a re-analysis of their data suggests the claimed molecules may not be there at all ...

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.