There may be at least one planet per star in the Milky Way, which means that Mother Earth could have as many as a 100 billion sisters...

A centuries-long journey will end tonight for hundreds of comet fragments as they smash into Earth's atmosphere at 90,000 miles per hour, burning up 50 miles above Mother Earth's s...

Stargazers will get yet another celestial show when Venus and the sliver of the crescent moon flirt in the western sky just after sunset on December 26...

We humble beings residing on Mother Earth have been treated to quite the celestial show of late. Back in October there was the Orionid Meteor Shower ...

Millions around the northern hemisphere mark the winter solstice in December, the shortest day and longest night of the year...

It plunged into the sun, and survived...

Just before the moon rises on December 13, and just after it sets on the 14th, and even during the hours between, the celestially inclined are invited to train their eyes on the sk...

A month ago it was an asteroid shooting between the earth and the moon . Now the earth will come between the moon and the sun...

The radiation storm that sent debris rocketing toward Earth on January 23 is giving aurora borealis watchers a stunning light show as far south as Scotland and England and promises...

YU55, the asteroid that's flying between the earth and the moon today, is named after the year it was discovered...