The article did mention that the photo was long exposure, so it may not be possi...

		craftyguy on Feb 13, 2018 \| parent \| context \| favorite \| on: Picture of a Single Atom Wins Science Photo Contes... The article did mention that the photo was long exposure, so it may not be possible to see it easily with the naked eye. A single photon emitted occassionally would be pretty hard to see, even though the human eye can detect a single photon.