The Milky Way is on a slow collision course with Andromeda.
Fact #143
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The Earth's atmosphere gradually fades into space.
Fact #334 · Space
The universe has no center.
Fact #1699 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1746 · Space
Black holes can slow time so much that seconds near them equal years far away.
Fact #1929 · Space
The Earth's orbit around the Sun is slightly elliptical.
Fact #199 · Space
The Earth's orbit determines the length of the year.
Fact #318 · Space
The universe is expanding faster.
Fact #1708 · Space
Black holes can merge and release enormous energy.
Fact #1614 · Space
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