The SpaceX Dragon capsule approaches the International Space Station, as photographed by the Expedition 39 crew members onboard the orbital outpost April 20, 2014.
The space shuttle Discovery was set to begin its final voyage last month. Now, because of a curious crack in the external fuel tank, the launch will happen no sooner than Feb. 3, 2011.
The two members of the Apollo 13 crew who planned to land on the Moon's Fra Mauro region in the lunar module undergo a walk-through of the extravehicular activity timeline. Fred W. haise, Jr., Lunar Module Pilot (r.), tries out a motorized core sampler while James A. Lovell, Jr., the Apollo 13 Commander, looks on (l.).
The final mission of the space shuttle Discovery has been delayed again. The next window of opportunity will be in December, which would mean the astronauts would spend Christmas in space.
US Sen. John McCain (R) of Arizona and his wife, Cindy McCain, address the media as they leave a polling station in Phoenix as Apollo, a dog owned by McCain's son Jimmy, licks the camera.
Space shuttle Discovery will lift off for the last time on Wednesday, Nov. 3. Here are a few tips on how to get a good seat to watch the launch.
One of five members of the Air Force Academy Wings of Blue parachute team jumps into the Rocket Garden at the Kennedy Space Center Visitor Complex which is celebrating Air Force Week. The Air Force Week program offers men and women of the United States Air Force the unique opportunity to share their experiences with members of the local community.
In this 1960 photograph, the seven original Mercury astronauts participate in US Air Force survival training exercises at Stead Air Force Base in Nevada. Pictured from left to right are: L. Gordon Cooper, M. Scott Carpenter, John Glenn, Alan Shepard, Virgil I. Grissom, Walter Schirra, and Donald K. Slayton. Portions of their clothing have been fashioned from parachute material, and all have grown beards from their time in the wilderness. The purpose of this training was to prepare astronauts in the event of an emergency or faulty landing in a remote area.
Seen here is a full-scale model of one of the twin Voyager spacecraft, which was sent to explore the giant outer planets in our solar system. Voyager 2 was launched August 20, 1977 followed by the launch of Voyager 1 sixteen days later. Both spacecraft visited Jupiter and Saturn with Voyager 2 continuing its journey to Uranus and Neptune. In spring 1990, Voyager 2 transmitted images looking back across the span of the entire solar system. Both Voyagers continue to explore interstellar space.
Besides water, frigid craters at the moon's poles hold other resources that astronauts might be able to use to sustain lunar bases. There's even a bit of silver.