The axolotl can regenerate limbs and even parts of its heart.

In 1938, Otto Hahn's work led to the discovery of nuclear fission.

Fact #1015 · Science

The microscope revealed microorganisms.

Fact #1554 · Science

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

Fact #1594 · Science

Some metals explode when they touch water.

Fact #1677 · Science

The Stanford linear accelerator helped advance particle physics research.

Fact #1020 · Science

Some prehistoric creatures were larger than modern equivalents.

Fact #733 · Science

The Tyrannosaurus rex may have had excellent vision.

Fact #687 · Science

The Earth's atmosphere contains trace amounts of carbon dioxide.

Fact #196 · Science