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Fallen coniferous trees from 211-218 million years ago can be found scattered across the desert of eastern Arizona in the form of petrified wood. Made primarily from quartz, these geological wonders are actually fossi...
Recorded on a Kennedy Space Center tour before the launch of the last Space Shuttle mission (Atlantis), watch tour attendees pick up NASA’s 2,200 degree thermal tiles — specially designed, coated LI-900 c...