Whistleblower claims US is concealing program that captures UFOs

David Grusch, a retired major general, claims the U.S. has had information about "non-human" activity since the 1930s.

Look up at the night sky for these July celestial events

Four planets will shine brightly for optimal skygazing opportunities, and the Full Buck supermoon comes early on July 3.

World UFO Day: New investigations show growing acceptance in science, government

Have aliens been confirmed yet? Well, no – but the expert work to identify hundreds of UFOs has accelerated in the last year more than ever. Here’s a look at where some investigations stand this World UFO Day.

Heads up: 7 planets will be in retrograde this summer

The planet Mercury is in retrograde most often because it's the fastest planet traveling around the sun, NASA explained.

See the bolt of lightning on Jupiter that caused an eerie green glow

Spacecraft Juno has been orbiting Jupiter for years sending back images. NASA shares the images online. Take a look at what one person discover on an image.