People walking in opposite directions in crowds spontaneously form lanes without conscious coordination.

The Earth's core is extremely hot and under immense pressure.

Fact #88 · Science

Dark matter is believed to make up most of the universe’s mass but has not been directly observed.

Fact #1594 · Science

Energy and mass are interchangeable.

Fact #1847 · Science

The Earth's atmosphere becomes colder in the stratosphere before warming again.

Fact #227 · Science

The Earth's outer core is liquid metal.

Fact #250 · Science

Ants do not have lungs and breathe through small openings in their bodies.

Fact #351 · Science

Particles can exist in multiple states until observed.

Fact #1824 · Science

Many coins are made of precious metals such as gold and silver which makes their value higher than face value.

Fact #1672 · Science