article_snippet: This artist's concept shows a star (left) being ejected from the galaxy, although in reality a supernova would have been faded long ago .
article_snippet: Extreme type of supernova, 50 times as energetic as other supernovas, resulting in a black hole.
article_snippet: The exact cause of Extreme type of supernova, 50 times as energetic as other supernovas, resulting in a black hole is unknown.
article_snippet: While a handful of other stars escaping the galaxy are known, this is the first to have been found that was ejected by a thermonuclear supernova explosion.
article_snippet: This particular class of supernova is known as type 1a, where material is transferred between one star and another until one reaches a critical mass, and explodes.
article_snippet: It is the first star found to be leaving the galaxy caused by such an event, and could provide an insight into these types of supernova .
highlights_snippet: It is the first star found to be leaving the galaxy caused by such an event .