Earth's oceans, known for their deep blue hue, could one day undergo color shifts, say scientists. A report based on a study ...

It was as sight to behold for those lucky enough to see it. A rare solar event caused wild aurora sightings across the globe this week. Space.com reports how a rare “cannibal” solar eruption — also ...

NASA astronaut Don Pettit captured breathtaking video of a rare atmospheric phenomenon from his perch high above Earth on the ... These are bright, colorful flashes of light faster than lightning ...