Saturn in fiction

Archimedes

Ever wondered why some things float while others sink?

Sun

The Sun makes up 99.86% of all mass in the solar system

Tardigrades can survive in space, boiling water, and temperatures near absolute zero

Tardigrades survive extreme conditions: space, boiling water, near absolute zero

Neutron stars are so dense that a teaspoon of their material would weigh about 6 billion tons

Neutron stars: teaspoon weighs ~6 billion tons

Observable universe

There are more stars in the universe than grains of sand on all of Earth's beaches

Edwin Hubble showed galaxies recede with a velocity proportional to their distance

Hubble's Law: v = H₀d, where v is recession velocity, H₀ is Hubble's constant, and d is distance