SDSS is a huge project dedicated to mapping the entire night sky. It does this using a telescope with a 2.5-metre mirror –  about the size of a double-decker bus. So far, SDSS has covered about a third of the sky, capturing multi-colour images and taking measurements of more than three million cosmic objects!

Read more Space Scoops based on Sloan Digital Sky Survey Press Releases. Learn more about Sloan Digital Sky Survey.

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