While I agree with this post right before this comment, I think it's important to point that this is the kind of throw-away statement that tends to drive women away from technical areas (esp. computer-related fields). It's one thing to have a random troll toss out some silly sexist crap... most people can just ignore that. But it's quite another for it to come from someone who says something that otherwise is very reasonable.

"Another impact structure in Siberia was created by an asteroid 100 km in size" That would've caused an extinction as bad if not worse than the end-K event (the one that killed the dinosaurs) - I think they mean the *crater* is 100 km in size - presumably they're referring to Popigai crater, which is dated to the Eocene, but the *crater* is 100 km, not the asteroid. 100 km is a *big* asteroid.