NASA - National Aeronautics and Space Administration

Like a trusty watch counting up the minutes, the Landsat 5 satellite keeps on ticking, orbit after orbit around Earth -- well beyond its design lifetime of 15,000 orbits. › Read More | › View Earth Images

Astronauts James McDivitt, Dave Scott and Rusty Schweickart launched in March 1969 with lunar module Spider and command module Gumdrop. Their mission: put the lunar module through its paces in Earth orbit. › View Interactive Feature

The public has voted on where they want to aim the Hubble Space Telescope. And the winner is -- drum roll please -- a pair of close-knit galaxies (inset above) that look like they are shaking hands -- or rather spiral arms. › Read More and Comment