Indonesia’s Kawah Ijen volcano appears to glow electric blue at night, but the colour does not come from lava. Instead, ...

Red does not make bulls angry. Science shows they react to movement, not colour, debunking myths and revealing how instinct, ...

ORLANDO, Fl. – As the days get shorter and the sun lowers in the sky, the intensity of sunlight decreases, signaling to trees that it’s time to prepare for winter. This triggers the leaves to stop ...

A newly recognised form of diabetes is changing how scientists understand the disease, especially in countries like India. In ...

The air particles that fall through will impact the shape they become. Warm temperatures tend to lead to longer shapes, like a needle. Colder temperatures create flat, plate-like snowflakes. Hahn said ...

Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below. You've just tried to add this ...

Could the Star of Bethlehem have been caused by a “great conjunction” of the bright planets Venus and Jupiter? On June 17, 2 B.C., the planets had come so close they would have almost appeared as one ...