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The Geoff

Apparently, this user prefers to keep an air of mystery about them.

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2 How ready are we to deal with a asteroid/comet/giant-meteor on a collision course with Earth? May 25 '16
1 what is the dimension of Black Hole? Sep 2 '17
1 Would space-based telescopes need to remain in the shadow of Earth to avoid light interference from the sun? Jul 4 '16
1 How long can you be trapped orbiting around a black hole for? May 18 '16
0 What happens if one day aliens want to talk to us. How can we talk to them? Feb 14 '18

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