Since its launch in August 2003, says Robert Kennicutt, an astronomer at the University of Arizona, NASA's Spitzer Space Telescope "has opened up half the universe to us." In the process ...
Nasa’s infrared Spitzer Space Telescope discovered several rocky exoplanets orbiting a star known as TRAPPIST-1. But now, ...
The Hubble is just one of NASA's orbiting "great observatories." The group also includes the Spitzer Space Telescope and the Chandra X-ray Observatory. Spitzer is an infrared orbiting telescope ...
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