Mission STS-131 is now complete with the safe landing of Discovery at NASA's Kennedy Space Center in Florida.
Space shuttle Discovery flies around the International Space Station after undocking.
The International Space Station's Expedition 23 crew bids farewell to the STS-131 crew.
Space shuttle Discovery ascent highlights from the STS-131 mission to the International Space Station.
The STS-131 and Expedition 23 crews field questions from reporters during the Joint Crew News Conference.
NASA has a bold mandate to launch a new journey of innovation and discovery. As we seek to explore far beyond earth, we must invest in critical knowledge and capabilities to enable this journey.
President Obama outlines new course for NASA.
President Obama boards Air Force One at NASA's Kennedy Space Center in Florida.
President Obama arrives at NASA's Kennedy Space Center in Florida.
Cameras mounted on space shuttle Discovery's twin solid rocket boosters provide a unique view of the trip to orbit.