Melba Martin, solar system ambassador to the Navajo Nation from NASA's Jet Propulsion Laboratory, spent part of the summer watching students in Chinle, Arizona, soak up knowledge a...

On August 31, the moon will be full for the second time this month. Because of that, this one is called a blue moon—it almost never happens...

It’s no moon , Venus , Jupiter or even Mars , but the eighth (and last, since Pluto was stripped of its status) planet in our solar system, Neptune, was at opposition on August 24...

The sun is full of surprises: In what is perhaps a display of the feistiness that is destined to increase over the next couple of years until peaking in 2013–14 , it recently launc...

Word on the street: If you see no other meteor shower this year, make it this one...

The major solar storms and resulting auroras of mid-July are but a taste of things to come as the sun reaches its maximum level of outbursts in its cycle...

In terms of discoveries, astronomers could well call this the year of the galaxy, so many celestial surprises are they stumbling across as they peer at the farthest reaches of the ...

Although Pluto was declassified as a planet back in 2006 , the icy orb may be having the last laugh: It’s got more moons than most bona fides do...

Manhattanhenge, the twice-yearly solar shining down the cross streets of New York City, is back tonight ...

Scientists believe they have isolated the Higgs-Boson, otherwise known as the God Particle...