Space Exploration: Incredible Flight to the Stars

Like ancient mariners, astronauts exploring the solar system will navigate by the stars. But when man finally ventures to the stars themselves, says NASA Mathematician and Physicist Saul Moskowitz in a Sky and Telescope article, navigation will become more of a problem. In place of the familiar and steadfast constellations he has learned to rely on, the star traveler will encounter a mystifying and spectacularly changing sky in which stars move, change color, brighten, disappear, and magically cluster together in front of him.

In a study he headed while working at Long...

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