Aurora Borealis Or Northern Lights Over A Forest
by Jack Finch/science Photo Library
Title
Aurora Borealis Or Northern Lights Over A Forest
Artist
Jack Finch/science Photo Library
Medium
Photograph - Photograph
Description
Aurora Borealis. Green Aurora Borealis or Northern Lights display over a forest. Aurorae are caused by the interaction between energetic charged particles from the Sun and gas molecules in the upper atmosphere (about 100 kilometres up). A stream of charged particles, called the solar wind, flows out into space continuously from the Sun at speeds of 400-500 kilometres per second. On reaching Earth the charged particles are drawn by Earth's magnetic field to the poles, where they collide with the upper atmosphere and cause excitation in the gas molecules. This excitation is released by the molecules as light. Photographed at Fairbanks in Alaska, USA.
Uploaded
September 21st, 2018
Embed
Share
Comments
There are no comments for Aurora Borealis Or Northern Lights Over A Forest. Click here to post the first comment.