Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1787
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The light you see from some stars today began traveling before humans existed.
Fact #1726 · Space
A day on Venus is longer than its year.
Fact #1684 · Space
The Pioneer 10 spacecraft was the first to travel through the asteroid belt.
Fact #1023 · Space
The Milky Way and Andromeda galaxies are on a slow collision course.
Fact #1613 · Space
Comets orbit the Sun in elongated paths.
Fact #75 · Space
Black holes have gravitational pulls so strong that not even light can escape.
Fact #66 · Space
The Earth's magnetic field shields the planet from solar wind.
Fact #119 · Space
The Milky Way galaxy contains billions of stars.
Fact #25 · Space
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