There are parts of the universe so far away that their light will never reach Earth, no matter how long we wait.
Fact #2334
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More Space Facts
Mercury is the closest planet to the Sun.
Fact #35 · Space
The Sun accounts for more than 99% of the mass of our solar system.
Fact #40 · Space
Light from distant galaxies shows us the past.
Fact #1682 · Space
Project Mercury was the first U.S. human spaceflight program.
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Mercury has extreme temperature differences.
Fact #147 · Space
The Kuiper Belt contains many icy bodies beyond Neptune.
Fact #1619 · Space
Time moves slower in stronger gravitational fields.
Fact #1912 · Space
Time moves slower in gravity.
Fact #1721 · Space
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