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NASA
The National Aeronautics and
Space Administration (NASA),
which was established in
1958, is the agency
responsible for the public
space program of the United
States of America. NASA's
vision is "to improve life
... > full story
Space observatory
A space observatory is any
instrument in outer space
which is used for
observation of distant
planets, galaxies, and other
outer space objects. A large
number of observatories have
been launched into orbit,
... > full story
Phoenix (spacecraft)
The Phoenix is a planned
multi-agency Mars lander,
headed by the University of
Arizona's Lunar and
Planetary Laboratory, under
the direction of NASA,
scheduled to launch on
August 3, 2007. It is a
... > full story
Exploration of Mars
The exploration of Mars has
been an important part of
the space exploration
missions of the Soviet Union
(later Russia), the United
States, Europe, and Japan.
Dozens of unmanned
spacecraft, including
... > full story
Browse Reference Articles
1 to 10 of 194 articles
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Compton Gamma Ray Observatory
The Compton Gamma Ray Observatory (CGRO) was the second of the NASA "Great Observatories" to be launched to space, following the Hubble Space Telescope. The observatory was launched on the Space ... > more -
Space Shuttle Columbia
Space Shuttle Columbia (NASA Orbiter Vehicle Designation: OV-102) was the first space shuttle in NASA's orbital fleet. Its first mission, STS-1, lasted from April 12 to April 14, 1981. On February 1, ... > more -
Great Red Spot
The Great Red Spot is a persistent anticyclonic storm on the planet Jupiter, 22 degrees south of the equator, which has lasted at least 340 years. The storm is large enough to be visible through ... > more -
Voyager program
The Voyager program consisted of a pair of unmanned scientific probes, Voyager 1 and Voyager 2, launched in 1977. They were sent to study Jupiter and Saturn, using an advantageous planetary alignment ... > more -
Space suit
A space suit is a complex system of garments and equipment and environmental systems designed to keep a person alive and comfortable in the harsh environment of outer ... > more -
Van Allen radiation belt
The Van Allen radiation belt is a torus of energetic charged particles (i.e. a plasma) around Earth, trapped by Earth's magnetic field. When the belts "overload", particles strike the upper ... > more -
Chandra X-ray Observatory
Chandra X-ray Observatory is a satellite launched on STS-93 by NASA on July 23, 1999. It was named in honor of Indian-American physicist Subrahmanyan Chandrasekhar who is known for determining the ... > more -
Spitzer Space Telescope
Spitzer Space Telescope (formerly the Space Infrared Telescope Facility [SIRTF]) is an infrared space observatory, the fourth and final of NASA's Great Observatories. The first images taken by SST ... > more
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