In 1995, NASA astronomer Bob Williams wanted to point the Hubble telescope at a patch of sky filled with nothing remarkable for 100 hours. Critics said it was a waste of valuable time. Williams said he’d resign if it came up blank. Instead, it revealed over 3,000 galaxies, in an area 1/30th as wide as a full moon.
from Unbelievable facts https://ift.tt/2Ps4RI6
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