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Shells of Cosmic Time (ft. @AstroKatie)

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 Physics   |   Science
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Thanks to @AstroKatie (http://astrokatie.com, http://twitter.com/astrokatie) for the collaboration!
Go to http://www.brilliant.org/minutephysics for free daily science puzzles

Here's the original twitter thread https://twitter.com/astrokatie/status/1066526148149108736

Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
Link to Patreon Supporters: http://www.minutephysics.com/supporters/

This video is about the cosmic distance scale and how we see objects farther away in space (ie at higher red shift) farther back in time because light takes time to reach us. Thus we can see not only stars and galaxies, but also the primordial stars & proto-galaxies, and even the remnants of the beginning of the universe itself: the CMB cosmic microwave background left over from the big bang.

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

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