Astronomical Images

Meteor Crater (also known as Barringer Crater) in Arizona is only 50,000 years old. Even so, it’s unusually well preserved in the arid climate of the Colorado Plateau. Meteor Crater formed from the impact of an iron-nickel asteroid about 46 ...

Aurora Australis: Red and green colors predominate in this view of the Aurora Australis photographed from the Space Shuttle in May 1991. The payload bay and tail of the Shuttle can be seen on the left hand side of the picture. Auroras are ...