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Should we be worried about creating a black hole?
why is space called space
Is an alien invasion possible?
Could you travel through a wormhole?
Will we ever run out of things to know?
Is the light from a supernova dangerous?
would you like to be the one in the space ship?
Are you ready for I'm an Astronaut? (1 comments)
My Comments
Are you ready for I'm an Astronaut? (1 comments)