Black holes can slow time so much that seconds near them equal years far away.
Fact #1904
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Mercury is the closest planet to the Sun.
Fact #35 · Space
A day on Mars is slightly longer than a day on Earth.
Fact #125 · Space
The Earth's axis is tilted about 23.5 degrees.
Fact #256 · Space
Black holes can bend light through gravitational lensing.
Fact #1598 · Space
The heliosphere protects the solar system from interstellar radiation.
Fact #1626 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1854 · Space
The Voyager 1 spacecraft is the farthest human-made object from Earth and still communicates with us.
Fact #1673 · Space
The Sun makes up 99.8% of solar mass.
Fact #1712 · Space
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