NASA’s Asteroids and Comets web site has a lot of good info about both the flyby of asteroid 2012 DA14 and the meteor fireball over central Russian.
* NASA – Asteroid 2012 DA14 as Seen from Siding Spring, Australia:
* Near-Earth Asteroid Makes Preview Appearance – a report and another GIF of the flyby
* Asteroid 2012 DA14 – Earth Flyby Reality Check – videos, trajectory diagrams and Q&A
A NASA report on the Chelyabinsk meteor event: NASA – Russia Meteor Not Linked to Asteroid Flyby
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This non-NASA site posts a nice infographic comparing asteroids that flew near or into earth: Comparing the Russian Meteor to Tunguska and Yesterdays Near Miss Asteroid – NextBigFuture.com.
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