Space

Drilling into some Mars rock, the rover found sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon — key ingredients for life.

The images of this past week's heavy snowfall in Missouri and across the Midwest are familiar and chaotic - cars in ditches, closed airports and overall…

The planet is eight times heavier than Earth and has a "fundamentally different chemistry."

NASA's Curiosity rover has found definitive proof that water once ran across the surface of Mars. NASA scientists say that new photos from the rover show rocks that were smoothed and rounded by water.

One of the twin space probes launched 35 years ago has traveled more than 11 billion miles. The Voyager probes were originally slated just to examine Jupiter and Saturn during a five-year trip.

Watch as a massive flare shoots from the sun and stretches a half million miles into space. Friday's event dealt Earth's magnetic environment a "glancing blow," NASA says.

Armstrong commanded the Apollo 11 spacecraft that landed on the moon July 20, 1969. His words about "one giant leap for mankind" became the stuff of history and were sealed forever in the memory of those who were lucky enough to hear them. The moonwalk was the climax of the U.S.-Soviet space race. He was 82.

Ride was a Ph.D. candidate at Stanford when she answered an ad to become a NASA astronaut. She became the first American woman in space when she blasted off in the space shuttle Challenger in 1983.