Proxima Centauri B, an exoplanet 4.25 light-years away, may be tidally locked and exposed to extreme stellar radiation.

Traveling at the speed of light 300,000 km per second sounds impossibly fast, yet even this ultimate velocity pales against ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

"If they were purely made up of stars, they would be the densest galaxies in the universe." ...

Globe and Mail journalist Mark Medley’s book delves into stories of seemingly impossible goals from around the world ...

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 ...

Humans may, one day, be able to inhabit other planets. Some advocates argue that remaining on only one courts disaster.

NASA’s Voyager 1 will soon reach one light-day from Earth, highlighting humanity’s most distant spacecraft and the vast scale ...