European ministers in charge of the ESA space agency have approved Hera, a mission that will test whether deflection could save humanity from a rogue asteroid. During the $ 320 million mission, ESA and partner NASA will send a pair of spacecraft to a…
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When it first went online in February 2016, the Hydrogen Epoch of Reionization Array (HERA) radio telescope in South Africa boasted 19, 42-foot-diameter antennas aimed at the "Cosmic Dawn" of the universe. The antennas are designed to detect a specif…
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