How do modern telescopes work?
Telescopes gather light in one of two ways. Reflecting telescopes focus light with a series of mirrors, while refracting telescopes […]
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How do astronomers use space-based telescopes?
Procedures for operating satellite telescopes are somewhat different from traditional ground-based telescope observing runs. Telescopes orbiting in space are operated
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Why are many observatories located on mountaintops?
Almost all of the world’s finest ground-based observatories are located on mountains, for a variety of reasons. First and foremost,
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Who built the first observatory?
Observatories, like so much of astronomy, are truly ancient features of human culture; retracing the steps of the first person
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What is the largest telescope?
The largest visible-light telescope currently in operation is at Gran Canarias Observatory, and features a 10.4-meter (34-foot) primary mirror. The
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Who invented the telescope?
The true inventor of the first telescope is somewhat difficult to nail down. However, the first person to apply for
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