Topic: Amy Mainzer
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Trojan asteroid discovered leading Earth's orbit
Trojan asteroid: NASA has discovered that Earth has an asteroid companion traveling just ahead of our planet as it orbits the sun. This so-called Trojan asteroid could serve as a stepping stone to celestial objects farther afield.
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NASA's WISE telescope delivers a stunning image of the Heart and Soul nebulae
The images of these star-nurseries were taken by NASA's Wide-field Infrared Survey Explorer, or WISE, space telescope, which is about three-fourths of the way through it's infrared scan of the entire sky.
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WISE set to search for universe's hidden 'dark' objects
NASA is scheduled to launch its WISE space observatory Monday. It will map the whole sky in infrared wavelengths, potentially revealing objects many telescopes can't see.
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