The Rosetta mission successfully landed a probe on a comet in 2014.
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Black holes can slow time so much that seconds near them equal years far away.
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Project Blue Book investigated reports of unidentified flying objects.
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The International Space Station orbits Earth roughly every 90 minutes.
Fact #81 · Space
There are more stars in the universe than grains of sand on Earth.
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There are planets made of diamond.
Fact #1688 · Space
Neutron stars can spin hundreds of times per second.
Fact #1597 · Space
The Sun makes up 99.8% of solar mass.
Fact #1712 · Space
The Kuiper Belt contains many icy bodies beyond Neptune.
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