Volcano Hekla and Aurora Borealis
 

Astronomy Picture of the Day

APOD pictures and links to them seem to surface occasionally but with surprising regularity. The photo above is terrestrial but usually APOD is celestial in subject matter as well as aesthetic. You can bookmark APOD (add it to your favorites) but there is also a free downloadable program for Windows that sets your desktop background daily to the APOD.

Astronomy Picture of the Day

The APOD Photo Above

APOD Backgrounder Software

Earth at Night