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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.
Auroras Over Both Earth Poles
Explanation: Auroras in the north and south can be nearly mirror images of each other. Such mirroring had been suspected for centuries but dramatically confirmed only last month by detailed images from NASA 's orbiting Polar spacecraft . Pictured above , a time-lapse movie shows simultaneous changes in aurora borealis , at the top, and aurora australis , at the bottom. A cloud of electrons and ions moving out from the Sun on October 22 created the auroras . The solar explosion that released the particles occurred about three days earlier.
| Date | November 14, 2001 |
|---|---|
| Credit | Credit: Polar VIS , JPL , NASA |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |