The gut-brain axis means probiotics may be as important for mental health as physical health.

Wood frogs can survive freezing by producing natural antifreeze chemicals.

Fact #862 · Science

A teaspoon of neutron star material would weigh billions of tons.

Fact #1679 · Science

Sound travels faster in solids than in air.

Fact #54 · Science

The Michelson-Morley experiment attempted to detect the presence of the 'aether.'.

Fact #1005 · Science

The largest known dinosaur species were long-necked sauropods.

Fact #630 · Science

The first birds evolved from small theropod dinosaurs.

Fact #693 · Science

The discovery of blood types improved transfusion safety.

Fact #1226 · Science

The Earth's inner core is primarily iron and nickel.

Fact #150 · Science