Uploaded February 2017 | Updated September 2026, 1 hour ago
Trojans asteroids are travel companions to planets system as they orbit the sun, remaining near a stable point 60 degrees in front of or behind the planet. Only one Earth-Trojan asteroid is known (2010 TK7), but scientists believe there could be more.
In mid-February 2017, NASA's OSIRS-REx mission will search for these elusive objects when the spacecraft passes by Earth's L4 Lagrange point, en route to asteroid Bennu in 2018.
Video Credit: NASA's Goddard Space Flight Center/Dan Gallagher
Orbital Graphics: University of Arizona/Heather Roper
Trojans asteroids are travel companions to planets system as they orbit the sun, remaining near a stable point 60 degrees in front of or behind the planet. Only one Earth-Trojan asteroid is known (2010 TK7), but scientists believe there could be more.
In mid-February 2017, NASA's OSIRS-REx mission will search for these elusive objects when the spacecraft passes by Earth's L4 Lagrange point, en route to asteroid Bennu in 2018.
Video Credit: NASA's Goddard Space Flight Center/Dan Gallagher
Orbital Graphics: University of Arizona/Heather Roper
