... In an Earth lab, Deinococcus radiodurans (D. rad) survive extreme levels of radiation, extreme temperatures, dehydration, and exposure to genotoxic chemicals. ... The graceful spiral structure seen in this computer visualization does not portray winding spiral arms in a distant galaxy of stars. ... Watching from a hillside near Austin, Texas, planet Earth, astrophotographer Russell Croman recorded this view of their passing as clouds gracefully dimmed the brilliant moonlight. ... First page ] Prev. ...