Spirit has taken a permanent residence on Mars and now you can send the long-lived rover a postcard.
After six years on the move, NASA’s Mars Exploration Rover Spirit prepares for a new phase of science.
Celebrate 70 years of innovation, from flight research to supercomputing and beyond.
The Galilean Moons--Io, Europa, Ganymede and Callisto--were discovered 400 years ago on Jan. 7, 1610.
NASA takes a look back at the top stories of 2009.
Get a unique 3-D perspective on the International Space Station and NASA's next Mars rover.
Three laboratories on the Space Station allow for out of this world advanced research.
This year, say it in stars! Send your best wishes for the season with our printable holiday cards.
NASA's Nobel Laureate tells his story of the universe, from the Big Bang to the James Webb Space Telescope.
How much do you know about changing sea level and its potential impact on coastal populations? Test your knowledge with this quiz.
Explore the history of planet hunting and the search for another Earth.
Atlantis and crew will deliver two gyroscopes, equipment and ExPRESS logistics carriers to the space station.
Buzz returned aboard space shuttle Discovery's STS-128 mission after 15 months aboard the ISS.› Play Now
How fast can you find the matching pairs of aeronautics design images?
NASA's Glenn Research Center has been home to the Black Widow, the Widowmaker and Betty Joe.
Sweeping views of the ringed giant and its moons.
Explore the men, machine and missions of the X-15 hypersonic research aircraft.
The STS-128 crew will deliver logistics and supplies to the International Space Station.
Before astronauts could walk its surface, NASA/JPL’s robotic explorers had to fly past, slam into, and land on the moon.
Explore the landing site at the Sea of Tranquility and go inside the lunar module Eagle.