An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Flickering coronal loops in the Sun's outer atmosphere could act as an early warning system for solar flares, according to ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Venus, Saturn, Jupiter and Mars are all visible to the naked eye just after the sun goes down. Neptune and Uranus can also be ...

Lee Min-ho's latest return to the Korean drama scene sees him as an OB/GYN going to space in When the Stars Gossip.

Nature has always been a powerful source of inspiration, with inventors diving into the world around them for new ideas. From ...

The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric ...

This is a remarkable time to observe Mars at its brightest, nearly as bright as Sirius the Dog Star, the brightest true star ...

Yes, Greenland is cold, really cold. Most of its climate is arctic tundra; generally, winter temperatures sit well below zero ...

Discover the fascinating story of the 'blue lurker,' a mysterious star in the M67 star cluster studied by NASA's Hubble ...

Some space conspiracy theories just won't go away.

Even Amtrak has canceled several Chicago-area trains ahead of a cold snap expected to plunge temperatures below zero in the ...