Phenomenon
Multi-ring Basin
A vast impact crater with concentric rings.
Huge impact structures featuring multiple concentric mountain rings — the Orientale Basin on the Moon is a textbook example.
Overview
Huge impact structures featuring multiple concentric mountain rings — the Orientale Basin on the Moon is a textbook example.
See also
Impact Cratering
Craters carved by colliding bodies.
Ejecta Blanket
Debris splashed out by an impact.
Solar Eclipse
When the Moon stands between Earth and Sun.
Lunar Eclipse
When Earth's shadow falls on the Moon.
Meteor Showers
Cosmic dust burning in our atmosphere.
Aurora (Northern/Southern Lights)
Solar wind painting the upper atmosphere.