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Why aren’t the stars visible in pictures of astronauts on spacewalks?
Answeredb4c9a289323b21a01c3e940f150eb9b8c542587f1abfd8f0e1cc1ffc5e475514?s=48&d=mm&r=gadmin asked 4 years ago • 
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how-far-is-andromeda-galaxy
Answered?s=48&d=mm&r=gram asked 4 years ago • 
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how-do-black-holes-work
Answered?s=48&d=mm&r=gVedh asked 4 years ago • 
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Do you think that people who don't understand relativity are limiting their understanding of the universe?
Answeredb4c9a289323b21a01c3e940f150eb9b8c542587f1abfd8f0e1cc1ffc5e475514?s=48&d=mm&r=gadmin asked 4 years ago • 
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how old is the universe ?
Answeredb4c9a289323b21a01c3e940f150eb9b8c542587f1abfd8f0e1cc1ffc5e475514?s=48&d=mm&r=gadmin asked 6 years ago • 
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