Instant Index: Scientists Find Source of Russian Meteor Crash

David Muir with the top stories that have people buzzing this week.
1:18 | 02/26/13

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Transcript for Instant Index: Scientists Find Source of Russian Meteor Crash
We're going to turn to the "instant index" here on a tuesday night. And we begin here with that familiar boom heard around the world. Who could forget it? Tonight, scientists have figured out where that giant meteor rite came from. They used all the videos from russian drivers and their dash cams and the traffic cams, which have time stamps. Astronomers have calculated it was 55 feet across and came from an asteroid belt between mars and jupiter. Tonight, first lady michelle obama revealing what's truly behind her greying husband. Mrs. Obama sitting down with robin, who, of course, is back on "gma" this week. And mrs. Obama said it's not the drama in washington behind her greying husband -- he's a little grey. People think the grey is from his job. It's from his children. Many dads can relate to that. The first lady with robin this morning. Now, to some very rare images this morning. Irresistible photographer behind them. We've seen the tiny cameras used by extreme at leiths. But that's little finn right there, 14 months old. He grabs his uncle's camera for a tour of the house. There's the ceiling fan. About to take us on a tour of the living room carpet. There's the view he could provide. He focuses the camera on the true star of it all -- himself.

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