스테판의 5중주 은하와 침입자 은하 사이의 충돌에 의해 생성된 충격파는 은하 사이의 공간에 존재하는 온열에서 고온 수소 플라즈마의 얇은 구름인 은하간 매체에서 이상한 과정을 일으키고 있습니다.
로 만든 새로운 관찰 제임스 웹 우주 망원경 (Webb 또는 JWST) 및 Atacama Large Millimeter/submillimeter Array(알마) 침입자를 잘 볼 수 있는 천문학자들을 제공했습니다. 은하 NGC 7318b는 약 180만 mph(초당 약 800km)의 상대 속도로 이 은하단으로 격렬하게 진입하고 있습니다. 그것은 여행하기에 충분히 빠릅니다. 지구 그 달 그리고 15분여 만에 다시 돌아옵니다.
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