But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

Scientists have discovered a 'super–Earth' planet less than 20 light–years away, and it could have the right conditions for alien life. The exoplanet, dubbed GJ 251 c, is at least four times larger ...

The Penn State-led Habitable Zone Planet Finder (HPF) provides the highest precision measurements to date of infrared signals from nearby stars. Pictured: The HPF instrument during installation in its ...