Instant Index (10.21.12)

The Mars rover takes soil samples in an attempt to identify minerals on the red planet.
3:00 | 10/21/12

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Transcript for Instant Index (10.21.12)
And now our instant index. The pictures and people that got us talking here this weekend. On the red planet tonight, the mars rover is eating dirt, literally. A small sample of the mysterious red soil. This picture shows three bite marks left on the surface. Each are about two inches long. The rover swallowed just a tiny pinch of dirt. About the size of a baby aspirin. Scientists are hoping it's enough to identify what kinds of minerals exist on mars. Forget the robot dance. This humanoid has gone gangnam and the video tonight has gone viral. Charlie ii was made at virginia tech. He's been used to research and develop a fire fighting robot one day. Clearly doing more than that in the meantime. The gangnam style dance is meant to show how the robot can move. And eight-time grammy winner adele is singing lullabies tonight. Rumor has it, the singer has given birth to a baby boy. "People" is reporting the birth happened on friday. She's ecstatic with her new arrival. No word on the baby's name yet. Adele who just released the new james bond theme song is laying low with her new baby. We want to hear from you. Which pictures, people and quotes caught your attention? Let us know at abcnews.Com or just tweet me, @davidmuir.

This transcript has been automatically generated and may not be 100% accurate.

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