In today's image, we see one of the moons of Saturn, known as Enceladus. It is shining by saturnshine which means that light from the Sun travel to Saturn and is reflected off the planet and then to the moon and finally to the observer - in this case, the spacecraft Cassini. Enceladus has some parts which are old and heavily cratered and also new surface which has formed more recently from geological activity in a water ocean below its surface.

My podcasts are available in video form through this YouTube Channel.

This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: wagnerastronomy@gmail.com

This work is licensed under a Creative Commons Attribution 4.0 International License.