[rjbemsha]

NASA video of dust plume formed by the Chelyabinsk object here http://www.astrobio.net/pressrelease/5629/around-the-world-in-4-days-the-chelyabinsk-meteors-plume

[Veggie Todd]

Isn’t collision and near miss the same thing?

[onedoug]

It had incorporated elements from earlier generations of stars as those referenced could not have been produced by the Sun.

Our innards have been about this general part of the galaxy for a long, long time.