Space starts at the Kármán line, just 100 km above sea level.
Fact #11470
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The Pioneer 10 spacecraft was the first to travel through the asteroid belt.
Fact #1023 · Space
The surface of Venus is hidden beneath thick clouds.
Fact #1628 · Space
The Earth is not perfectly round.
Fact #1719 · Space
Neutron stars can spin hundreds of times per second.
Fact #1597 · Space
Interstellar objects have passed through our solar system.
Fact #1604 · Space
The Moon has lower gravity than Earth.
Fact #254 · Space
The Voyager 1 spacecraft is the farthest human-made object from Earth and still communicates with us.
Fact #1673 · Space
Exoplanets have been discovered in habitable zones around distant stars.
Fact #1625 · Space
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