The first human-made object to fly by Venus was the Mariner 2 spacecraft nearly six decades ago 1. It was followed by two decades of intense in-situ and orbital exploration with probes and balloons ...
Mission engineers at NASA's Jet Propulsion Laboratory in Southern California turned off the cosmic ray subsystem experiment aboard Voyager 1 on Feb. 25 and will shut off Voyager 2's low-energy charged ...
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