Astronomy: Age 16

3 illustrated Astronomy lessons for Age 16.

A Planet Dims Its Star When a planet passes in front of its star, it blocks a tiny fraction of the starlight, so the star looks sligh…
Hot Disk at a Galaxy Center At the center of a galaxy, a supermassive black hole pulls gas into a swirling disk. The gas becomes so hot th…
Shielded Lamps and Dark Skies Streetlights without shields send light upward, making the night sky brighter and hiding faint stars. Streetli…