JPL engineer Robert Peters is responsible for the testing and development of an advanced instrument that will one day help scientists analyze the atmospheres of distant planets for signs of life.
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Eli Dwek of NASA's Goddard Space Flight Center in Greenbelt, Md. and Richard Arendt of the University of Maryland, Baltimore County, say these echoes are powered by radiation from Cassiopeia A supernova shock wave that blew the star apart some 11,000 years ago.
Galaxy Evolution Explorer
Uses ultraviolet wavelengths to measure the history of star formation 80 percent of the way back to the Big Bang.
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Keck Interferometer
Links two 10-meter (33-foot) telescopes, which form the world's most powerful optical telescope system.
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Palomar Observatory
A joint effort between JPL and the California Institute of Technology, the Palomar Observatory houses a collection of famous telescopes.
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Spitzer Space Telescope
Uses infrared technology to study celestial objects that are too cool, too dust-enshrouded or too far away to otherwise be seen.
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Ulysses
Orbits sun around the north and south poles.
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Voyager to the Outer Planets
Voyager 1 and 2 flew past Jupiter and Saturn. Voyager 2 also flew by Uranus and Neptune. Voyager 1 is now approaching interstellar space.
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Wide Field and Planetary Camera 2
This camera, designed and built at JPL, served as the main camera capturing pictures on NASA's Hubble Space Telescope. It still takes images of planets, stars and galaxies.
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