Earlier this year, Japan’s space agency suffered a major blow when its new X-ray astronomy satellite, known as Hitomi, broke apart in space just one month after the vehicle had launched. But before the spacecraft met its premature demise, it was able to squeeze in a bit of valuable science. By observing X-ray emissions coming from a cluster of galaxies 250 million light years away, Hitomi measured just how fast interstellar gases moved between the galaxies within the cluster.
Japan’s Hitomi spacecraft measured the movements of a galaxy cluster just before it died
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