Phoenix CityCam caught the flash of light around 8:30 p.m. on Nov. 14, 2017. Image courtesy Phoenix.gov/CityCam.
Arizonans were treated to an unusual spectacle Tuesday night as a fireball flashed across the sky around 8:30 p.m.
The American Meteor Society received reports from six states describing the object, which flashed brighter than the full moon before quickly fizzling out.
Arizona bark scorpion glowing under ultraviolet light. Photo by Bryce Alexander.
More than 450 million years ago, the entire genetic instruction book of spiders’ and scorpions’ common ancestor doubled, according to a genomic comparison of the common house spider and the Arizona bark scorpion.
Eight U.S. Department of Defense brain studies, one at Arizona State University, are investigating ways to help soldiers learn more efficiently.
The Defense Advanced Research Projects Agency (DARPA) hopes not just to make better sharpshooters, but also to shorten training periods for translators, analysts and cryptographers — and, perhaps, to improve outcomes for soldiers with brain injury and memory loss.