if its in orbit, then it will stay up there forever unless something hits it close enough to the Earth for it to fall.
one year
it can stay in space for up to a month but then it will run out of oxygen it usaully only stays up for 2 weeks
Most Space Probes never come back, the Space Probe Voyager 1 has traveled so far that it is out of our solar system. It was launched in the 1970s.
she stayed in space for 8 days or... 190 hours 30 minutes and 23 seconds!
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