If you removed all the empty space in atoms, all of humanity could fit in a cube the size of a sugar cube.

There are invisible particles everywhere.

Fact #1724 · Science

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

Fact #1594 · Science

Positive reinforcement can strengthen certain behaviors.

Fact #964 · Science

Fossil discoveries continue to reshape scientific understanding.

Fact #752 · Science

Archaeopteryx is considered a transitional fossil between dinosaurs and birds.

Fact #624 · Science

The Stanford marshmallow experiment studied delayed gratification.

Fact #1494 · Science

The earliest dinosaurs were relatively small.

Fact #731 · Science

Volcanic lava can reach extremely high temperatures.

Fact #824 · Science