The sky appears blue due to sunlight scattering in Earth's atmosphere. While sunlight contains all colors, blue light disperses most effectively, illuminating the sky. Although violet scatters more, ...

Explore the intriguing question of living on Earth 2.0 in this video. Delve into the possibilities of space, the universe, ...

Billy Henry helps bring the stars within reach in his role as the host of StarDate, which airs on public radio stations ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...