A day on Venus is longer than its year
Venus takes about 243 Earth days to spin once on its axis but only about 225 Earth days to go around the Sun. It also spins backwards compared to most planets.
More space facts
See all →The footprints on the Moon will last millions of years
The Moon has no wind, water or weather to wear them away. Apollo boot prints from 1969 are still crisp; only slow micrometeorite rain will eventually erase them.
Read the fact →Sunlight takes about 8 minutes to reach you
Light leaves the Sun’s surface and crosses 150 million km to Earth in roughly 8 minutes 20 seconds. The light you see from the Sun is always slightly old news.
Read the fact →Neutron stars are so dense a teaspoon would weigh a billion tonnes
A neutron star packs more mass than the Sun into a ball about 20 km across. Its surface gravity is around 100 billion times Earth’s.
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