There is a diamond planet twice the size of Earth — 55 Cancri e has a surface of graphite and diamond.
Fact #3674
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Black holes can slow time so much that seconds near them equal years far 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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Black holes can bend light through gravitational lensing.
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The light you see from some stars today began traveling before humans existed.
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The Earth's axis is tilted about 23.5 degrees.
Fact #256 · Space
The light you see from some stars today began traveling before humans existed.
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The Wow! signal was a strong radio signal detected in 1977 that has never been fully explained.
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The Rosetta mission successfully landed a probe on a comet in 2014.
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