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Famous Arecibo observatory to be decommissioned in Aftermath of cable Fractures
Expand / / A aerial perspective of the Arecibo centre, revealing that the increasingly brittle cables behind the device platform, in addition to the gash generated when one of these cables neglected. Now the National Science Foundation announced that the famous Arecibo radio observatory will be closed down. Built to a hilltop from Puerto Rico, […]
Electrons in ionosphere catch a plasma wave to produce brightest auroras
Enlarge / Physicists report definitive evidence that auroras that light up the sky in the high latitudes are caused by electrons accelerated by a powerful electromagnetic force called Alfvén waves. (credit: Austin Montelius, University of Iowa) In August and September 1859, there was a major geomagnetic storm—aka, the Carrington Event, the largest ever recorded—that produced […]
CDC lifts most mask restrictions for those vaccinated against COVID-19
Enlarge / If you’ve been vaccinated, the CDC now says you can skip the mask and spacing. (credit: Luis Alvarez/Getty Images) As part of an ongoing press conference, the Centers for Disease Control responded to recent data on the effectiveness of vaccines and updated its guidance on mask use and physical distancing. Under the new […]