NASA's next big space observatory is finally aloft, but it'll be a while before it starts its highly anticipated science mission.
Here's what historians have to say about whether Benjamin Franklin really flew a kite tied to a key during a lightning storm.
A bombshell UFO report, the "alien junk" in our solar system, and more new clues about extraterrestrial life.
Here's a roundup of he best air purifiers for allergies, which are most effective at removing allergens so you can breathe easier.