Space shuttle program astronauts, NASA officials and family members will commemorate the Challenger disaster that occurred 25 years ago Friday. The Challenger accident led to several changes in the US space shuttle program.
A new Hubble Space Telescope image of a celestial object called the Ant Nebula may shed new light on the future demise of our Sun. The Ant Nebula, whose technical name is Mz3, resembles the head and thorax of an ant when observed with ground-based telescopes. The new Hubble image, with 10 times the resolution revealing 100 times more detail, shows the 'ant's' body as a pair of fiery lobes protruding from a dying, Sun-like star. The Ant Nebula is located between 3,000 and 6,000 light years from Earth in the southern constellation Norma.
Billows of smoke and steam infused with the fiery light from space shuttle Endeavour's launch on the STS-127 mission fill NASA Kennedy Space Center's Launch Pad 39A on July 15, 2009.
Eugene A. Cernan, Apollo 17 Commander, salutes the flag on the lunar surface during extravehicular activity (EVA) on NASA's final lunar landing mission. The Lunar Module "Challenger" is in the left background behind the flag and the Lunar Roving Vehicle (LRV) also in background behind him. While astronauts Cernan and Schmitt descended in the Challenger to explore the Taurus-Littrow region of the Moon, astronaut Ronald E. Evans, Command Module pilot, remained with the Command/Service Module (CSM) "America" in lunar-orbit.
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.