This is an artist’s impression of the record-breakingly powerful, superluminous supernova ASASSN-15lh as it would appear from an exoplanet located about 10,000 light years away in the host galaxy of the supernova. Credit: Beijing Planetarium / Jin Ma
Astronomers studying what may be the most powerful supernova ever seen, with energy of hundreds of billions of suns. At its heart is an object a little larger than 10 miles across that could be a very rare type of star called a magneta – but one so powerful that it pushes the energy limits allowed by physics. An international team of professional and amateur astronomers spotted the possible supernova, now called ASASSN-15lh, when it first flared to life in June 2015.
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