A collection of more than 30,000 historical photographs, slides, lithographs, engravings, and other visual materials, the Emilio Segrè Visual Archives focuses on American physicists and astronomers of the twentieth century, but includes many scientists in Europe and elsewhere, in other fields related to physics, and in earlier times.

The collection is named in honor of Emilio Segrè, best known for his Nobel Prize-winning work in nuclear and high-energy physics, but also an avid photographer and author of books on the history of modern physics.

Check the site out for images of scientists at work, family groups and offical portraits. Fascinating!

Made primarily from data and imagery collected by NASA satellites and graphically enhanced by the NPS, Natural Earth is a base for general mapmaking. The combination of shaded relief and landcover colors brings the physical world to life and encourag es readers to explore. World physical map at 1.24 km resolution.

go to: http://www.shadedrelief.com/natural/index.html

For more add ons: http://www.worldwindcentral.com/wiki/Add-on:Natural_Earth

The WorldWide Telescope (WWT) is a rich visualization environment that functions as a virtual telescope, bringing together imagery from the best ground and space telescopes in the world for a seamless, guided exploration of the universe.

WorldWide Telescope, created with Microsoft’s high-performance Visual Experience Engine™, enables seamless panning and zooming across the night sky blending terabytes of images, data, and stories from multiple sources over the Internet into a media-rich, immersive experience.

Check it out: http://www.worldwidetelescope.org/