Aerogel is the world's lightest solid, so insulating it can hold a flower over a blowtorch.

The Müller-Lyer illusion makes lines of equal length appear different.

Fact #1464 · Science

Time moves slower in stronger gravitational fields.

Fact #1821 · Science

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

Fact #1012 · Science

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

Fact #1594 · Science

Gravitational waves were detected a century after Einstein predicted them.

Fact #1607 · Science

The Earth's atmosphere scatters sunlight.

Fact #322 · Science

Fossils are formed when remains are preserved in rock over millions of years.

Fact #631 · Science

In 1954, a scientist allowed himself to be bitten by mosquitoes to study malaria transmission.

Fact #997 · Science