There are invisible colors humans cannot see.

Quantum particles can influence each other instantly across distance.

Fact #1829 · Science

Fossils form when organisms are preserved in sediment over millions of years.

Fact #678 · Science

Lightning can heat the air it passes through to temperatures hotter than the surface of the Sun.

Fact #5 · Science

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

Fact #997 · Science

The door-in-the-face technique uses large requests to gain smaller agreements.

Fact #1502 · Science

Vaccines train the immune system to recognize pathogens.

Fact #64 · Science

Rats have demonstrated empathy in laboratory studies.

Fact #1308 · Science

Stem cell research explores regenerative medicine.

Fact #1218 · Science