Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
The Bruce Murray Space Image Library

Saturn's northern aurora in motion

Filed under pretty pictures, Cassini, Saturn, animation

Go Back

An aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this movie recorded by Cassini. These observations, taken over four days, represent the first visible-light video of Saturn's auroras. They show tall auroral curtains, rapidly changing over time when viewed at the limb, or edge, of the planet's northern hemisphere. The sequence of images also reveals that Saturn's auroral curtains, the sheet-like formations of light-emitting atmospheric molecules, stretch up along Saturn's magnetic field and reach heights of more than 1,200 kilometers above the planet's limb. These are the tallest known "northern lights" in the solar system. The images were captured in black and white, but the aurora in this movie is shown in a false orange color to distinguish it from background noise in the images.

NASA / JPL-Caltech / SSI

Original image data dated on or about October 6, 2009.

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.


Other Related Images


Leave a Comment:

You must be logged in to submit a comment. Log in now.

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!