With just our eyes, we can see many things in the night sky, including stars, planets, meteors, comets, auroras, and the Moon. Have you ever looked up and wished that you could take a closer look at the Moon or see the rings of Saturn? You have probably seen photographs of distant galaxies, exploding stars, and glowing nebulas. Did you wonder how those photos were taken?
For the past 400 years, telescopes have helped astronomers see into the depths of outer space.
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