Astrobiology (Please watch the video, each question should be answered by about

Question

Astrobiology (Please watch the video, each question should be answered by about 8 to 10 (depending on length) meaningful sentences of response.

New Worlds and Yellowstone: How Common Are Habitable Planets? Part 2

Dr. Geoff Marcy (University of California, Berkeley)

Link: https://www.youtube.com/watch?v=-7ChJUyoKDA

(3) By doing your own fact checking, i.e., based on references obtained by internet search, summerize additional facts about the Chelyabinsk Meteor not included in the video. (Include refs.) (4) Describes some efforts by NASA to protect Earth from incoming asteroids. (Include refs.)

(4) Describes some efforts by NASA to protect Earth from incoming asteroids. (Include refs.)

Explanation / Answer

(3) By doing your own fact checking, i.e., based on references obtained by internet search, summarize additional facts about the Chelyabinsk Meteor not included in the video.

Answer: It was a superbolide (means very brighter). It was observed wide area and visible up to 100 km away and it burst at height of around 29.7 km. It fell through atmosphere with approximately speed 60000-69000 km/h.

(4) Describes some efforts by NASA to protect Earth from incoming asteroids.

Answer: This meteorite effort can be trying reducing through by the deflection efforts; this means meteor can be diverted, while coming towards earth surface.

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