Astronomers have observed unusual changes in the brightness and shape of Betelgeuse, a massive red supergiant star in the constellation Orion, about 550 light-years away from Earth. These changes include brightness fluctuations of up to 30% over a few months, which are believed to be caused by enormous convection cells on the star's surface. These cells, each potentially containing hundreds of times the mass of the Sun, cause the star to expand and contract, resulting in visible changes in its appearance. Between 2019 and 2020, Betelgeuse became significantly dimmer, leading to speculation that it might be on the verge of a supernova explosion. However, further research showed that the dimming was due to a combination of a dust cloud released by the star and the effects of its convection cells. This explanation ruled out the possibility of an imminent explosion during that time. Betelgeuse remains a prime candidate for eventually exploding as a supernova, an event that could happen at any time within the next 100,000 years. If such an explosion were to occur, it would be visible from Earth even during the day, shining as brightly as the full moon. However, predicting the exact time of this event is extremely difficult, as the processes within stars often take place over timescales far longer than a human lifetime. Studying Betelgeuse offers astronomers a rare opportunity to observe the final stages of a massive star's life. Its relatively close distance to Earth allows for detailed observations of its surface, which provide valuable insights into the processes that lead to the death of such stars. These observations help scientists understand what might happen to other red supergiants in the galaxy, although those stars are generally too far away to be studied with the same level of detail.