Located in the northern constellation of Ursa Major, which also includes the Big Dipper, nearby galaxy Messier 81 is easily visible through binoculars or a small telescope. M81 is located at a ...
The Stratospheric Observatory for Infrared Astronomy, SOFIA, studies the universe with infrared light. That’s a range of wavelengths on the infrared spectrum, from those measuring about 700 nanometers ...
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