Sunday, January 6, 2019

Shooting the Stars

While today's Astronomy Picture of the Day might look like we're trying to take out alien invaders, it's a tool used to measure distortion in the atmosphere in order to "sharpen" the images returned. This is one of several methods and instruments that have developed to help keep ground-based astronomy able to more than compete with space-based astronomy (for those wavelengths that can be observed in our soupy atmosphere!)

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