The universe is full of wonders, but some worlds are downright deadly. From searing heat to violent storms, these planets make Earth look like a paradise. Many of them challenge everything we know ...

Discover the scariest things in the universe in this spine-chilling video. We're giving away some awesome List25 shirts!!

One final Predator: Badlands trailer has hit ahead of the movie's release, showing off the dangerous planet of Kalisk in all its glory. Following a killer teaser trailer and the more plot-heavy main ...

Conditions in the early universe might have enabled rocky planets with water to form much earlier than anticipated, potentially allowing life to begin sooner too. Astrophysicists studying the early ...

"Even if a planet is in the habitable zone, if it has too small a water inventory, it transitions to an uninhabitable state." When you purchase through links on our site, we may earn an affiliate ...