Sci-fi loves parallel universes. But could we really be in one? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Parallel universes are no longer ...
U.S. Vice President Kamala Harris speaking April 18 at Vandenberg Space Force Base, California, where she announced a ban on destructive, direct-ascent antisatellite weapons testing. Credit: U.S.
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