Astronomers have recently discovered SN 2017egm—a rare helium-rich superluminous supernova (SLSN). This incredibly bright explosion is 500 times brighter than a typical supernova, making it one of the most luminous events ever seen.

SN 2017egm was discovered by a team of international astronomers using the Zwicky Transient Facility in California. This supernova is part of a rare class of stellar explosions known as type Ibn supernovae, which are characterized by their helium-rich material. This type of supernova is incredibly rare, with only five such events having been discovered in the past decade.

This discovery of SN 2017egm is an important one for astronomers, as it helps to further our understanding of these mysterious events. It will also allow astronomers to study the nature of type Ibn supernovae in greater detail, which could help to shed light on the physics of these powerful explosions.

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source: Phys.org