Can you help me setup an automated task?

Hi all:

Every day NASA puts up an "Image of the Day" Sometimes it is a really cool nightscape, sometimes it is great hubble photography, etc... I've been opening up the page every day and right clicking on the new image and saving it to a folder. Is there a way to automate this?

I'd love for my computer to automatically go to the page with the new image on it and save it to a folder. Sometimes I jsut don't have the time to get over to the page, or I jsut simply forget. Is there a way to automate this process?