Science fiction has imagined everything from little green men to tentacled monsters—but real biology may offer clearer clues.

For generations, artists and science-fiction writers have imagined alien landscapes beneath twin sunsets. The image became iconic in popular culture long before astronomers confirmed that planets ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Some scientists believe the sheer number of stars, planets and potentially habitable environments in space makes ...

This summer, exoplanet science — the study of planets orbiting stars beyond our sun — took a big step forwards. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet ...

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...

More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The sheer scale of the universe strongly ...

If you keep up with where the next SpaceX or Blue Origin rocket is headed, you are probably familiar with NASA’s Double Asteroid Redirection Test, a project to determine if a rocket launched from ...

A rocky world orbiting within its star’s habitable zone may be surrounded by a helium-rich atmosphere, providing the strongest evidence yet that planets with Earth-like conditions could support life ...