Near-Earth Objects/Planetary Defense - January 21, 2022

NASA says there are some 28,000 comets and asteroids in our planet’s neighborhood, with more being discovered every day. Fortunately, the space agency also says the probability of a major collision is quite small. Dr. Paul Chodas, manager of NASA’s Center for Near-Earth Object Studies, joins Rick Pantaleo on the Science Edition of Press Conference USA to talk about asteroids and other near-Earth objects.