NASAさんのインスタグラム写真 - (NASAInstagram)「We all spiral sometimes! The spiral galaxy UGC 11860 — seen in this @NASAHubble image — lies around 184 million light-years away in the constellation Pegasus, and its untroubled appearance is deceiving; this galaxy recently played host to an almost unimaginably energetic stellar explosion. A supernova explosion – the catastrophically violent end of a massive star’s life –was detected in UGC 11860 in 2014. Astronomers used Hubble’s Wide Field Camera 3 to search through the aftermath and analyze the lingering remnants of this vast cosmic explosion. Learn more at the link in our bio! Image Description: A spiral galaxy, a fuzzy oval tilted diagonally and partially towards the viewer. The center glows in warm colors, and has two prominent spiral arms around it, with bright points of star formation. The galaxy appears centrally in a field of small stars and galaxies on a dark background.」7月8日 4時00分