TransitingExoplanetSurveySatellite
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NASA's planet-hunting TESS spacecraft snaps its first photo
TESS, NASA's new exoplanet-hunting spacecraft, has captured its first image ever, giving us a glimpse of what its powerful "eyes" can see. The spacecraft's science team used one of its four cameras to snap a two-second test exposure as part of their preparations now that TESS is only a month away from officially starting its science operations. Their photo shows over 200,000 stars with the southern constellation Centaurus at the center and one of the brightest stars in the night sky, the Beta Centauri, visible on the lower left edge (see the full image below the fold).
NASA's new satellite will look for Earth-sized planets nearby
The Kepler mission scopes out stars and galaxies thousands of light-years away to find exoplanets. NASA's upcoming planet hunter, however, will keep an eye on solar systems closer to home. The Transiting Exoplanet Survey Satellite or TESS will find planets by observing stars and looking out for shadows cast by transiting planets. It will be programmed to compute for a planet's size and the time it takes to orbit its star, because those are the information astronomers need to determine if it's habitable. Since Earth- and even super-Earth-sized planets are tiny, though, TESS will observe small bright dwarf stars only hundreds of light-years away.
