First Known Earth Trojan Asteroid
This animation illustrates the orbit of 2010 TK7 (green dots), the first known Earth Trojan asteroid, discovered by NEOWISE, the asteroid-hunting portion of NASA’s WISE mission.
Video courtesy of NASA.
Image description: This is Vesta, an asteroid which is the brightest object in the asteroid belt as seen from Earth and is thought to be the source of a large number of meteorites that fall to Earth. This image was taken by NASA’s Dawn spacecraft. Learn more about Dawn and its mission.