https://motherboard.vice.com/en_us/article/3k4y58/a-black-hole-has-been-shredding-a-star-twice-the-size-of-the-sun-for-10-years

If you were to travel some 150 million light years from Earth in the direction of Ursa Major, you’d come across a cataclysmic collision of two galaxies, known collectively as Arp 299. It’s a pretty wild place packed with exploding stars, earning it entry into an elite club of galactic “supernovae factories.”

But rapid self-detonation is not the only way stars die in this highly energetic galactic merger. In a study published on Thursday in Science, an international team of astronomers outline the slow demise of a star twice the size of the Sun as it ran afoul of a supermassive black hole with a mass equal to 20 million Suns.