Sloan Digital Sky Survey Data "Maps the Universe", And You Can Use It!

From their website:

The Sloan Digital Sky Survey has created the most detailed three-dimensional maps of the Universe ever made, with deep multi-color images of one third of the sky, and spectra for more than three million astronomical objects. Learn and explore all phases and surveys—past, present, and future—of the SDSS.

If you are interested in astronomy or astrophysics research, but you're not sure how to get your hands on some big data, this may be the website for you. Their Data Release 12 contains all of the survey's observations through 7/2014. "Each Data Release includes four types of data: images, optical spectra, infrared spectra, and catalog data (parameters measured from images and spectra, such as magnitudes and redshifts)."

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