Best of 2014 — More Substance Than We Could Imagine

Empty Space

Since 1995, astronomers have pointed our Hubble Space Telescope toward regions of space we previously thought to be “empty” of matter, mapping new views with time exposures lasting days. Now in combination with the Chandra X-ray Laboratory, the November 2014 composite above shows that “empty” space is actually home to uncounted galaxies and worlds beyond our human vision and understanding.

 

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