Earth Observatory IOTD Widget
Provides a simple sidebar widget to display NASA’s Earth Observatory Image of the Day and/or the RSS feed. Numerous options are available to display the content the way you want, including control on the image width and description.
The widget can also output just the RSS feed, providing links to previous images for up to the last 10 days (maximum available in feed).
Thumbnail images are cached to the plugin folder daily if needed, and the RSS feed is updated hourly.
Use the comments below for questions or suggestions.