The Moon always shows the same face to Earth.
Fact #134
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The Earth's rotation is gradually slowing over time.
Fact #105 · Space
The Earth's orbit determines the length of the year.
Fact #318 · Space
The Earth's gravity affects the movement of tides.
Fact #231 · Space
Gamma-ray bursts are among the most energetic events observed in the universe.
Fact #1602 · Space
Interstellar objects have passed through our solar system.
Fact #1604 · Space
Light from distant galaxies shows us the past.
Fact #1682 · Space
Neutron stars can spin hundreds of times per second.
Fact #1597 · Space
Black holes can slow time so much that seconds near them equal years far away.
Fact #1776 · Space
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