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Scientists construct an artificial reef used in the reef grouper study.
This visualization exaggerates the movement of Castleton Tower in its primary resonant frequencies.
Electrons around an iridium ion, right. Left, interfacing iridium with nickel alters its shape.
Silver nanopillars from laser simulation.
Navajo Sandstone from the Moab area—a look into the distant past.
A wind farm in the Tehachapi mountains of California.
Purple test results indicate healthy zinc levels; yellow indicates dangerously low levels.