Mind=blown
Space really is pretty much infinate.
Actually this is wrong. Both Edwin Hubble and Einstein discovered that the
universe is not infinite in space and time.
Hubble discovered it in the 1920's with his 100-inch Hooker Telescope on Mount Wilson near Pasadena, CA.
Einstein discovered it mathematically, but didn't like the conclusions that it
implied (the universe had a beginning, and has a cause), so he made up
a "cosmological constant" which allowed his equations to work in a static
universe.
Once he saw the expanding universe in Hubble's telescope in 1929, he
admitted that his "cosmological constant" was the worst blunder of his
career.