What are some surprising facts about the universe?

 

• The tallest mountain in our Solar System is on Mars

• Sound cannot travel in space (since there is obviously no atmosphere)

• The nearest star is about 4.2 light-years from Earth

• A spoonful of neutron star matter weighs about a billion tons.

• You can't cry in space, because your tears would never fall.

• In 1977, we received a signal from deep space that lasted 72 seconds. We still don't know what it meant or where it came from.

• Saturn's rings aren't solid. They're made up of fragments of ice, dust, and rock.

• A single day on Venus is longer than its year. Venus takes 243 Earth days to rotate once on its axis. The planet's orbit around the Sun takes 225 Earth days.

• The Milky Way is like a city of stars so large that even traveling at the speed of light, it would take us about 100,000 years to get from one end to the other.