APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Sentinels of a Northern Sky
Explanation: Who guards the north? The featured picture was taken last March in Finnish Lapland where weather can include sub-freezing temperatures and driving snow. Surreal landscapes sometimes result, where white alien-looking sentinels seem to patrol the landscape. In actuality though, the alien s are snow-covered trees, and the red hut they seem to be guarding is an outhouse . Far in the distance, behind this uncommon Earthly vista , is a beautiful night sky which includes a green aurora , bright stars, and streaks of orbiting satellites . Of course, in the spring, the trees thaw and Lapland looks much different .
| Date | January 10, 2017 |
|---|---|
| Credit | Image Credit & Copyright: Pierre Destribats |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



