(CNN) — The 47-year-old Voyager 1 spacecraft is back in touch with NASA — but not out of the woods — after a technical issue caused a days-long communications blackout with the historic mission, which ...
Modern Engineering Marvels on MSN
New research: Are radio-bright galaxies hiding alien transmitters?
Across the observable universe, galaxies advertise themselves in radio waves for familiar reasons-magnetic fields, cosmic ...
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