Nasa recently confirmed that the total number of known exoplanets, alien planets orbiting stars beyond our Solar System, has reached an impressive milestone of 6,000. This reflects decades of cosmic ...

The discovery of a possible "super-Earth" less than 20 light-years from our own planet is offering scientists new hope in the hunt for other worlds that could harbor life, according to an ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown. When you purchase through links on our site, we may earn an affiliate ...

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 ...