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WISE Mission Sees First Trojan AsteroidNASA's WISE Mission Finds First Trojan Asteroid Sharing Earth's Orbit The main image above is an artist's concept illustrating the first known Earth Trojan asteroid, discovered... More »
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WISE Mission Sees First Trojan Asteroid Last Updated on 2011-07-27 00:00:00 NASA's WISE Mission Finds First Trojan Asteroid Sharing Earth's Orbit The main image above is an artist's concept illustrating the first known Earth Trojan asteroid, discovered by WISE. The asteroid is gray and its extreme orbit is shown in green. › Full image and caption › See animation Image (right): Asteroid 2010 TK7 is circled in green, in this single frame taken by NASA's Wide-field Infrared Survey Explorer, or WISE. Image credit: NASA/JPL-Caltech/UCLA › Full image and caption › View image gallery Astronomers studying observations taken by NASA's Wide-field Infrared Survey Explorer (WISE) mission have discovered the first known "Trojan" asteroid orbiting the sun along with Earth. Trojans are asteroids that share an orbit with a planet near stable points in front of or behind the planet. Because... More » 
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