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Great video images. It really gives the feel of what Galileo, Newton, and Herschel experienced and accomplished with their telescopes. It looks a Cassini and Kepler telescopes.
52 minutes that can be split into 6 parts, but I had to watch it straight through.
Focus on 20th century - Mt Wilson, Edwin Hubble, discovery of Big Bang radiation, Hubble telescope, dark matter and energy, Keck telescopes.
The part about the Sloan Digital Sky Survey was interesting, especially the precision of the sky charts to allow measuring 640 spectra at a time. Impressive.
Excellent series and timely given the 20th anniversary of Hubble.
52 total minutes, 7 parts