Sunday, October 8, 2017

How Do We Track Photons Through Space?

How can we track individual particles as they bounce around through the Universe, or can we? Is light just some energy bouncing around, instead of a fixed particle? How could we tell?

from Forbes Real Time https://www.forbes.com/sites/jillianscudder/2017/10/08/astroquizzical-track-photons/
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