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The Sun and stars emits radio waves — not just visible and infrared light. In the 1930s, Karl Jansky built the first devise to "listen" to the sun, collecting radio waves from far off stars and focusing them onto a detector. This invention provided astronomers with a completely different view of the Universe — prompting the discovery of radio stars, quasars, and black holes.

This video features a model of the Algonquin Radio Observatory (ARO), located in Ontario's Algonquin Provincial Park. In 1968, astronomers combined signals from the ARO with those from the Dominion Astrophysical Radio Observatory in Penticton, British Columbia forming a new instrument called a Long Baseline Interferometer.

To learn more about astronomy and telescopes, visit the Canada Science and Technology Museum.

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current19:13, September 21, 2018Thumbnail for version as of 19:13, September 21, 2018480 × 269 (37 KB)Queen Armada (Talk | contribs)created video


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