The observable universe is about 93 billion light‑years wide.
Fact #1837
More Space Facts
The observable universe is about 93 billion light‑years wide.
Fact #1789 · Space
The light you see from some stars today began traveling before humans existed.
Fact #1831 · Space
The Sun will eventually expand into a red giant.
Fact #111 · Space
Neptune has some of the fastest winds in the solar system.
Fact #122 · Space
Project Blue Book investigated reports of unidentified flying objects.
Fact #1047 · Space
The Mars Pathfinder mission tested new landing techniques.
Fact #1016 · Space
Black holes can slow time so much that seconds near them equal years far away.
Fact #1940 · Space
Neptune appears blue because of methane in its atmosphere.
Fact #167 · Space
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