Forget aliens. We've got to find the asteroids.
It’s not speculative; a major meteoric impact is inevitable, and we need to keep a better eye on the solar system.
“The question is, when is the next one going to happen on a human time scale as well as a geological time scale?” says Amy Mainzer, a scientist at CalTech’s Jet Propulsion Laboratory and the principal investigator for the NEOCam project.