About 2% of people have green eyes.

DNA carries genetic information in living organisms.

Fact #37 · Science

Water expands when it freezes, which is why ice floats.

Fact #9 · Science

The Asch conformity experiment revealed how group pressure influences decisions.

Fact #1466 · Science

X-rays were discovered in 1895 and transformed medical imaging.

Fact #1194 · Science

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

Fact #338 · Science

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

Fact #1594 · Science

Nothing can travel faster than light in a vacuum.

Fact #1777 · Science

The earliest dinosaurs were relatively small.

Fact #731 · Science