Neutron stars can spin at a rate of 600 rotations per second.
99% of our solar system’s mass is the sun.
The width of the Milky Way is around 100,000 light years
The Martian day is 24 hours 39 minutes and 35 seconds.
Venus is the only planet that spins backwards relative to the other planets.
Pluto is smaller than the Earth’s moon!
Our moon is around 4.5 billion years old.
Uranus’ blue glow is down to the methane in its atmosphere, which filters out all the red light.