Evidence

The Pentagon is the headquarters of the United States Department of Defense, the head of our military operations. It's come under fire for keeping mysterious secrets under wraps-including possible proof of alien life. Find out what other out-of-this-world information the government has possibly kept hidden.

The odds of us being alone in outer space are small. Maybe we've already been visited by alien life but didn't even know it. What if those life forms are still here? Jump into some of Earth's most alien mysteries and explore the signs they may have left behind.

We're not alone in the universe; Earth is just one tiny planet in the vast cosmos. Biologists are searching the skies for signs of life, from tiny microbes to supersmart sci-fi societies, discovering what else is out there lies just beyond the stars. Space is full of mysteries, and we're here to solve them.