Rocking with Hawking
Showing posts with label
Earth
.
Show all posts
Showing posts with label
Earth
.
Show all posts
Tuesday, May 8, 2012
Water world
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" If you collected all of Earth’s water into a sphere, how big would it be? "
Monday, February 6, 2012
Blue marble
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More images here . A different, ginormous image here .
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