SDO's onboard telescopes will scrutinize sunspots and solar flares using more pixels and colors than any other observatory in the history of solar physics.
Design your scientist, lab and spacecraft, choose your destination, and launch!
NASA enters a new era through commercial partnerships and cutting-edge technology research designed to enable us to explore new worlds and increase our understanding of the Earth and our universe.
› View Gallery
Honoring NASA's Heroes
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.
Astronauts Conrad, Gordon and Bean explore the moon's Ocean of Storms.
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
Submit your video answering why you think space exploration is important and it could be featured online!
How fast can you find the matching pairs of aeronautics design images?