It’s a wonderland of receding planetary bodies and galaxy clusters that takes us to the edges of our cosmic horizon, looking from the outside in at what resembles a dense blue sphe...

Watching planets and stars as they appear in the sky is captivating, but gazing at pinpricks of light glistening against the celestial sphere doesn’t give the heavenward ogler a se...

Plasma from the year’s strongest Coronal Mass Ejection (CME) yet has been hurtling toward Earth since the early morning hours of April 11, when it blasted out from the sun at 600 m...

Soar through space with this amazing video showing our possible brother and sister planets in the universe—just in our galactic neighborhood, in fact...

Venus and Jupiter have moved their celestial trysts to mornings, Venus having transited the sun on June 5–6 . It is now the Morning Star...

The moon’ tidal forces are pulling on Earth enough to slow down her rotation, by about 1.4 milliseconds every 100 years...

The first reissue of the Big Blue Marble image of Earth last week was so popular, Wired UK reports, that hits on Flickr surpassed those on the previous high record, the Situation R...