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One of the first challenges for early man was to name star groupings. In this lesson we look at the history that informed the naming of stars and how star charts serve as a professional tool for when Global Positioning System satellite infrastructure goes down.
Astronomers study stars and galaxies by analysing the visible light, radio waves and electromagnetic radiation they receive from them. In this lesson we look at the telescope as a modern observatory tool.
Now that you’ve had an introduction to telescopes. Let’s look at a type of optical instrument that uses a mirror to collect and reflect light to form an image and allows one to see faraway objects in the night sky up close.