Q&A: Comet ISON
Tuesday, November 26, 2013 - 09:00
in Astronomy & Space
(Phys.org) —Don Yeomans, a senior research scientist at JPL, keeps a watchful eye on near-Earth objects—asteroids, comets and other space rocks. Yeomans heads a group charged by NASA to watch for objects whose orbits bring them close to Earth.