Two moons hanging over the earth.

The spacecraft New Horizons is on schedule to get a good view of Pluto on July 14th 2015. We should soon have some measurements that will help determine how much of the icy planet is made up of water. On board New Horizons are instruments like Ralph, Alice, Rex, and Lorri. The requirements for these devices are that they need to be small, lightweight, powerful and...

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