So how can we tell that the Russian meteor isn’t related to asteroid 2012 DA14?One way is to look at meteor showers — the Orionids all have similar orbits to their parent comet, Halley. Similarly, the Geminids all move in orbits that closely resemble the asteroid 3200 Phaethon, which produced them. So if the Russian …
How Do We Know the Russian Meteor and 2012 DA14 Aren’t Related?
