This artist’s concept depicts the NISAR satellite in orbit over central and Northern California. The spacecraft will survey all of Earth’s land and ice-covered surfaces twice every 12 days.
On August 21, as the shadow of the moon races across the continental United States at more than 1,000 miles per hour, Girl Scouts of the USA – councils, volunteers and girls – will be poised to safely ...
Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...
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