What Scientists learned after firing a small cannonball into a near-earth asteroid

[Nicky91]

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[Mystic Mock]

I wish I could say that I understood it all, but I do find Astronomy a fascinating subject.

[Kazanne]

Why are we blasting things up there ? don't we have enough to deal with down here, all that money could go to preserving our planet, why do we meddle in everything ?