Thursday, 25 April 2024

Random Thread: May 2014

IGM

 

Astronomers using an instrument called the Palomar Cosmic Web Imager have taken pictures of the Intergalactic Medium, the network of unbelievably thin rivers of hydrogen gas that flow through space between the galaxies. They call the gas “dim matter” because it’s warmer than dark matter but too cold to glow. There must be a metaphor in there somewhere.

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