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

A single teaspoon of soil contains more microorganisms than people on Earth

Did you know a teaspoon of soil teems with life?

Gravitational constant

Ever wondered why apples fall straight down instead of flying off sideways?

Subrahmanyan Chandrasekhar calculated the mass limit for white dwarfs at age 19 on a boat to England

Did you know there's a cosmic weight limit for stars?

Your body has about 37.2 trillion cells

Did you know your body has more cells than stars in the Milky Way?

Pi

Pi has been calculated to over 100 trillion digits

Stellar black hole

Ever wondered why nothing escapes a black hole's pull?