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8 images of Earth as seen from space

By: Katherine Butler on March 7, 2011, 12:25 p.m.
Earth seen from space shuttle discovery

Photo: NASA

6 of 9

Gazing at Earth

The crew of space shuttle Discovery took this picture as the shuttle was docked at the International Space Station. As NASA reports, the Leonard Multi-Purpose Logistics Module can be seen in Discovery's payload bay. You can't tell from this image, but almost 75 percent of the Earth's surface is covered in saltwater oceans. Earth is the only planet in the solar system on which water exists in equilibrium on the surface.