Scientists have been observing the star for decades as it was in the late stages of its lifespan meaning a huge supernova explosion could happen.
It was observed shining brightly between 2001 and 2011 but 2019 data revealed its absence.
Confused by how such a big star could mysteriously disappear, scientists looked back at data from 2016 and found the star was also missing back then.
Somehow, it seems to have disappeared sometime after 2011.
Now, scientists are wondering whether the star skipped the supernova stage, previously thought to be a necessary step in the end of a star’s life.
Instead, they think it could have just collapsed into a black hole.
Astrophysicist Andrew Allan said: “If true, his would be the first direct detection of such a monster star ending its life in this manner.”