The high-resolution image is displayed in full width. A small caption gives the title and links to the corresponding Earth Observatory article. Click to zoom-in, and click-drag to scroll around.
The latest entry information is found with the RSS feed. The high-resolution image url is found by scraping the article page. This is saved to local storage to speed subsequent accesses as much as possible.
Error on zoom: error in fetching the image may result in a blank screen when zooming, refreshing the cache should do the trick (Ctrl + F5 or Ctrl + Shift + R).
Disclaimer: this is amateur code, I barely know what I am doing
