If you were standing on the Moon, you would see footprints from 1969 that may still be there millions of years from now.
Fact #2479
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Venus has surface temperatures hot enough to melt lead.
Fact #215 · Space
Comets can develop long tails when near the Sun.
Fact #281 · Space
Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1751 · Space
Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1735 · Space
There are more stars in the universe than grains of sand on Earth.
Fact #1680 · Space
The International Space Station orbits Earth roughly every 90 minutes.
Fact #81 · Space
The universe has no center.
Fact #1699 · Space
The Fermi Paradox questions why extraterrestrial life has not been observed.
Fact #1603 · Space
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