Astrophysicists have observed layers of helium, carbon, and oxygen in exploding stars before, which are visible after the star has ejected its outer layer of hydrogen. By observing the silicon, sulfur ...

At about 950 times bigger than our Sun, Betelgeuse is one of the biggest stars in our Universe. But that comes with a price. Just like us, stars have a life expectancy, and Betelgeuse is no different.

Scientists have for the first time peered inside a dying star as it exploded in a supernova, gaining not just unprecedented views of its layers, but more so, insight into the process of stellar ...