NASA

NASA currently has only 61 astronauts. To meet the demands of the International Space Station (ISS) crew requirement, NASA has to take significant steps to ensure that it maintains a highly trained corps for the upcoming programs.

NASA's Lunar Reconnaissance Orbiter (LRO) captured never-before-seen images from space of the Apollo 12, 14 and 17 landing sites which show the twists and turns of the paths made when the astronauts explored the lunar surface.

NASA's Juno spacecraft, while traveling to Jupiter, managed to capture a rare image of the Earth and Earth's Moon.

NASA's defunct Upper Atmosphere Research Satellite is expected to plunge on earth in an uncontrolled fall in late September or early October, officials said Wednesday. Though the 6.5 ton satellite is expected to burn up as it enters the earth's atmosphere, NASA doesn't rule out the possibility of solid pieces touching the ground.

The sun unleashed an unusually strong X2.1-class solar flare on Tuesday which was four times stronger than the earlier M-class flare that erupted on Sept. 6 at about 0150 GMT.

NASA releases photos of human activity on the moon ahead of GRAIL mission launch.

A 20-year-old NASA satellite is set to plunge back to Earth between late September and early October and is expected to rain debris over a wide area.

A new report warns that United States is running out of astronauts and NASA's current staffing plans are insufficient to maintain its presence on the International Space Station and prepare for the next generation of spaceflight.

Frank Lee Culbertson Jr. was 150 miles above the World Trade Center

Human spaceflight is evolving but the United States does not currently have enough astronauts to meet the demands according to the National Research Council.

Human spaceflight is evolving but the United States does not currently have enough astronauts to meet the demands according to the National Research Council.

NASA's LRO takes a walk down memory lane and looks back at three of the Apollo missions

NASA and Russia have less than two months to decide whether to abandon $100 billion International Space Station (ISS) for a period of time following the failure of the Russian Soyuz rocket last month.

If you are slow, you would blast. This could be the status of several old stars, or white dwarfs, in our Milky Way galaxy and they may scatter throughout our galaxy as ticking time bombs waiting to explode as Type Ia supernova.

NASA's Lunar Reconnaissance Orbiter has captured the sharpest images ever taken from space of the Apollo 12, 14 and 17 landing sites. Images show the twists and turns of the paths made when the astronauts explored the lunar surface.

Recent pictures taken by a NASA's orbiting camera has revealed to the world, clearest evidence so far of the fact that man went to the moon 40 years ago when the U.S. spaceflight touched down on the moon's surface.

NASA's Earth Observatory has released a photo of the border between India and Pakistan taken from the International Space Station. The striking orange line depicting the hostile Asian border, however, is not a product of photoshop. This is the fenced and floodlit border zone between India and Pakistan. The fence is designed to discourage smuggling and arms trafficking and shows how divided the two nations are.

NASA has released sharpest images ever taken from space of the Apollo 12, 14 and 17 landing sites, showing the twists and turns of the paths made when the astronauts explored the lunar surface.

The cameras which are overseen by an Arizona State University professor have captured the sharpest images ever taken from orbit of three Apollo landing sites.

NASA's Lunar Reconnaissance Orbiter (LRO) captured the sharpest images ever taken from space of the Apollo 12, 14 and 17 landing sites. The pictures show the tacks and debris left by astronauts and their lunar rovers on the moon's surface in the 1960's and 1970's.

GRAIL mission spacecraft set to be launched from Florida’s Cape Canaveral Air Force Station.