There are estimated to be 2 trillion galaxies in the observable universe.
Fact #10385
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More Space Facts
A day on Mars is slightly longer than a day on Earth.
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The Earth's orbit around the Sun is slightly elliptical.
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The observable universe is about 93 billion light‑years wide.
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There are rogue planets drifting through space with no star at all.
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The Moon's surface temperature varies dramatically.
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Black holes can bend time.
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Neutron stars are among the densest objects in the universe.
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Exoplanets have been discovered in habitable zones around distant stars.
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