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Hubble Space Telescope

For more than a decade, the Hubble Space Telescope has dazzled with stunning pictures of stars, galaxies and planets both in our solar system and beyond. The telescope orbits Earth at an altitude of 612 km (380 statute miles) at 28,000 kph (17,500 mph). At that speed, one orbit takes only 97 minutes.

Hubble Space Telescope - Facts & Figures
NASA named the world's first space-based optical telescope after American astronomer Edwin P. Hubble (1889–1953). Dr. Hubble confirmed an "expanding" universe, which provided the foundation for the Big Bang theory. Hubble's two mirrors were ground so that they do not deviate from a perfect curve by more than 1/800,000ths of an inch.

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