NASA explains how and why the yearly event occurs
That's more than 4.5 billion years old
Traveling at 2.5 million miles per hour
New research shows indoor tanning can cause skin cancer even if you never get burnt
They must have been sick the day this was taught in school.
The developer seems to have choked under the pressure of his game's success
The event marks the longest night in the Northern Hemisphere and the longest day in the Southern Hemisphere
Every 11 years, the Sun's magnetic poles reverse themselves. That has big implications for satellites, global communications and even astronaut safety
It's a comet! It's an asteroid! It's a bit of both—and it's one of the niftiest little members of the solar system
A probe is being designed to fly into the sun—and, more impressively, fly out again.
Militant spares four-year-old after the boy shames him
Hassan Rouhani took time on Wednesday to bid a holiday greeting to "all Jews" on Rosh Hashanah
A U.S. soldier pulls security in northern Kunduz province, July 15.
A throwback to the earliest days of the Universe suddenly reappears
The Kepler Space Telescope might have hit the motherlode
One thing the war in Afghanistan has taught the Pentagon: even the lightest of U.S. forces -- that would be the Marine Corps – relies too much on fuel to keep...
Legendary navigational tool could be real.
Is this a case of, don't try for me, Argentina?
Check out this NASA-created video beamed from the Solar Dynamics Observatory of our sun firing a blast of super-hot plasma further than our planet's diameter...
If early observations are any indication, we could be in for a real sky-show next fall