Time moves slower in stronger gravitational fields.

Sound travels faster in solids than in air.

Fact #54 · Science

Electricity involves the movement of charged particles.

Fact #29 · Science

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

Fact #1594 · Science

In 2012, scientists confirmed the existence of the Higgs boson.

Fact #1012 · Science

The peacock’s colorful feathers evolved through sexual selection.

Fact #882 · Science

The Earth's interior is layered into crust, mantle, and core.

Fact #338 · Science

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

Fact #227 · Science

The Earth's magnetic field is generated by its outer core.

Fact #331 · Science