NASA's Earth Observing System (EOS) is "a coordinated series of polar-orbiting and low inclination satellites for long-term global observations of the land surface, biosphere, solid Earth, atmosphere, and oceans." On their website, visitors can learn about the EOS's various projects and initiatives via their in-house newsletter, "The Earth Observer," and by looking at their vast collection of images captured by satellites. Users can select the Images by Mission drop-down menu to peruse images from fifteen different missions, including Aquarius, ICESat, and SeaWinds. The site also contains a Communications area, which offers up key publications, educational posters, calendars, booklets, and facet sheets. [KMG]