Page 98 - Super Earth Encyclopedia
P. 98
HEAT AND LIFE
Tiny figures on the walkway show the
scale of Yellowstone’s Grand Prismatic
Spring—one of the largest hot springs on
Earth. In the blue center, water bubbles
up from below ground at up to 188°F
(87°C). As the water spreads it cools,
allowing the growth of microbes that
vary in color depending on the
temperature of the water.
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