Sky & Telescope September 2022 Magazine
In the September 2022 issue of Sky & Telescope, we’re seeing triple. We scoured the cosmos for three-of-a-kinds to bring you some incredible celestial triplets from lunar craters to star clusters and even galaxies. Then, we’re finally setting the story straight six decades after the discovery of Neptune. Despite longstanding national tensions over this discovery, it may have been the result of pure luck. One thing we don’t want to leave up to chance any longer is planetary defense. Join us as NASA gets ready to be the first to alter the motion of a celestial body. This proof of concept might one day help astronomers protect Earth.
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