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Interstellar magnetic fields warp as our sun and heliosphere move through galaxy
This illustration shows our heliosphere - the sphere of the sun's influence - moving through the space of our Milky Way galaxy.
February 18, 2014
Video: The World Outside My Window
Time-lapse photography from International Space Station Expeditions 29, 30 and 31.
February 16, 2014
Venus brightest in mid-February for all of 2014
What's that very bright star or planet in the east before sunrise now? It's the planet Venus, now near its time of greatest brilliancy.
February 14, 2014
Chinese moon rover Yutu is awake
After hibernating in the cold lunar night, the Chinese moon rover Yutu seemed dead. Then it showed signs of life. Now it's awake! Will it be able to finish its mission?
February 13, 2014
Looking backwards along a rover’s path on Mars
Last week, the rover Curiosity crossed successfully over some potentially hazardous terrain, at a place called Dingo Gap on Mars. This movie looks backwards along its path.
February 12, 2014
First global geologic map of Jupiter’s large moon Ganymede
Scientists say the new map of Ganymede is the first complete global geologic map of an icy moon of an outer planet.
February 12, 2014
A 360-degree view of Saturn’s auroras
Ultraviolet and infrared images from NASA's Cassini spacecraft and Hubble Space Telescope show active and quiet auroras at Saturn's north and south poles.
February 11, 2014
NASA photos suggest water might be flowing on Mars
New clues about the mysterious streaks that appear on the surface of Mars during warm weather. Scientists they might be caused by flowing water.
February 11, 2014
The oldest known star in the universe
The ancient star, about 6,000 light years from Earth, formed 13.7 billion years ago, shortly after the Big Bang. It's the oldest star yet found.
February 10, 2014
What if the sun disappeared?
We wouldn't know the sun was gone for eight-and-a-half minutes. Then Earth would head off in a straight line, into eternal night.
February 8, 2014
