Jezero Crater on Mars was once home to a lake, delta and rivers. See an animation of what it could have looked like when water poured into the crater billions of years ago and present day. Credit: ...

Walt Disney Studios, Pixar, Marvel, Lucasfilm, Disney Television Animation and 20th Television Animation will present ...

Area 51 fit the bill perfectly. It was in the Nevada desert near a salt flat called Groom Lake. No one knows exactly why it's called Area 51, but one theory suggests it came from its proximity to ...