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42+ How Long Is 4 Light Years In Space
42+ How Long Is 4 Light Years In Space. It depends on speed of your shuttle. 4 billion light years away. A STIS absorption spectrum ESA/Hubble from spacetelescope.org About 37,200 human years saying we were a space shuttle that travelled five miles per second, given that the speed of light travels at 186,282 miles per […]