Witness the abstract beauty of our planet from over forty vivid satellite photos of volcanoes, islands, glaciers, deserts, coastlines, lakes, canyons, rivers, deltas, and mountains from around the world.
View space from the Hubble Telescope with forty images of spinning galaxies, colorful nebulae, distant supernova remnants, solar system planets, and other amazing celestial bodies.
For the Romans, Mars was the God of War. For today's astronomers, Mars is a possible water source for future generations. This NASA screensaver tells the tale of Mars' past and the role it may play in all of our futures.
