YR4 has a 2.3% chance of hitting Earth in the year 2032. But according to new estimates, it may have an even smaller chance ...

What if an unknown technological civilization is hiding right here on Earth, sheltering in bases deep underground and ...

Archeologists have discovered evidence of a previously unknown prehistoric civilization spanning 3,000 square miles across Central Europe. And Google Earth helped them do it. "When we recognized ...

"Humans are the only example we know of, and our industrial civilization has lasted (so ... of the time that complex life has existed on the Earth's land surface." "This short time period raises ...

Sid Meier's Civilization: Beyond Earth is the natural extension of a series of games that begin in a pre-agricultural age, pulling the player right up to intergalactic travel. It is the story of ...