![](\"http:\/\/spaceweekly.com\/wp-content\/uploads\/2019\/06\/An_explosive_galaxy_small.jpg\")
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\nWhen massive stars die at the end of their short lives, they light up the cosmos with bright, explosive bursts of light and material known as\u00a0supernovae. A supernova event is incredibly energetic and intensely luminous \u2014 so much so that it forms what looks like an especially bright new star that slowly fades away over time.\n<\/p>\n
\nThese exploding stars glow so incredibly brightly when they first form that they can be spotted from afar using telescopes such as the\u00a0NASA\/ESA Hubble Space Telescope. The subject of this image, a\u00a0spiral galaxy\u00a0named NGC 4051 \u2014 about 45 million light-years from Earth \u2014 has hosted multiple supernovae in past years. The first was spotted in 1983 (SN 1983I), the second in 2003 (SN 2003ie), and the most recent in 2010 (SN 2010br). These explosive events were seen scattered throughout the centre and spiral arms of NGC 4051.\n<\/p>\n
\nThe SN 1983I and SN 2010br were both categorised as\u00a0supernovae of type Ic. This type of supernova is produced by the core collapse of a massive star that has lost its outer layer of hydrogen and helium, either via winds or by mass transfer to a companion. Because of this, type Ic \u2014 and also type Ib \u2014 supernovae are sometimes referred to as stripped core-collapse supernovae.\n<\/p>\n
\nThis galaxy\u2019s beautiful spiral structure can be seen well in this image, along with other intriguing objects (including an emission-line galaxy known as SDSS J120312.35+443045.1, visible as the bright smudge to the lower middle of the image, beneath the sweeping arm of NGC 4051).NGC 4501 sits in the southern part of a cluster of galaxies known as the\u00a0Ursa Major I Cluster; this cluster is especially rich in spirals such as NGC 4051, and is a subset of the larger\u00a0Virgo Supercluster, which also houses the\u00a0Milky Way.\n<\/p>\n