NASA

The government is investigating hundreds of military UFO reports, but only a small fraction are truly "anomalous."

Japan's private Hakuto-R spacecraft broke into at least four large pieces of debris, according to new images from NASA's Lunar Reconnaissance Orbiter.

The Sentinel-6 Michael Freilich satellite recorded Kelvin waves moving eastward across the Pacific — a phenomenon often considered a precursor to El Niño.

An enormous balloon spotted circling the Southern Hemisphere is actually SuperBIT, a NASA telescope that is capturing Hubble-quality data from the upper reaches of the atmosphere.

The rover spotted a tiny Martian rock that looks eerily like a fossilized book on the surface of the Red Planet.

The hefty space rock, known as 2006 HV5, is around 1,000 feet wide and will hurtle past our planet at around 39,000 mph.

The rover has finally lost a pesky rock that had become lodged in its front left wheel "like a pebble in its shoe." The stone had accompanied the rover for more than half its time on the Red Planet.

The moon is slowly creeping away from Earth, but will we actually lose the moon before the sun turns into a red giant and destroys us both?

NASA has converted years of satellite data on Earth's magnetosphere into eerie sound clips that can be used by citizen scientists to help make new discoveries.