January 19, 2017 / Modified jun 22, 2017 4:22 p.m.

Episode 64: The Hunt for Trojan Asteroids

Next month, a team at the UA's Lunar and Planetary Lab will begin searching for Trojan asteroids.

Arizona Science spot Arizona Science, Fridays on NPR 89.1


After a successful launch last September, the OSIRIS-REx spacecraft has a new mission. Next month, a team at the UA's Lunar and Planetary Lab will begin searching for Trojan asteroids which are asteroids that orbit the sun in the same orbit as Jupiter's orbit. In addition to Jupiter, these asteroids are also found around other planets such as Mars, Uranus, Neptune and Earth. Renu Malhorta with the UA's Planetary Sciences says that so far, only one Earth trojan has been identified but that it's likely there are many others. Malhorta originally proposed the the mission to search for the asteroids once she realized the path OSIRIS-REx would be taking. NASA has been devoting resources to studying asteroids that are close to earth since they could pose a potential hazard to the planet. The primary mission of OSIRIS is to study the asteroid Bennu and return a sample back to earth.


Renu Malthrop, Regents' Professor of Planetary Sciences at the UA
Tim Swindle, Ph.D., Director and Department Head of the UA's Lunar and Planetary Lab

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