The Moon has no atmosphere like Earth's.
Fact #89
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Gamma-ray bursts are among the most energetic events observed in the universe.
Fact #1602 · Space
The light you see from some stars today began traveling before humans existed.
Fact #1831 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1870 · Space
Interstellar objects have passed through our solar system.
Fact #1604 · Space
Black holes can slow time so much that seconds near them equal years far away.
Fact #1940 · Space
The Earth's magnetic field protects against solar radiation.
Fact #269 · Space
The Oort Cloud is a theoretical shell of icy objects surrounding the solar system.
Fact #1600 · Space
The observable universe spans billions of light-years.
Fact #1611 · Space
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