The closest star to our solar system, Proxima Centauri, is about 4.24 light-years away.
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In 1977, a strong narrowband radio signal known as the 'Wow! signal' was detected from space.
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There are rogue planets drifting through space with no star at all.
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Some galaxies appear distorted due to gravitational effects.
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A teaspoon of neutron star material would weigh billions of tons.
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The observable universe is about 93 billion light‑years wide.
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Saturn's rings are made primarily of ice particles and rocky debris.
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