Odd supergiant star Betelgeuse is brightening up. Is it about to go supernova?

Sep 18, 2023
"Our best models indicate that Betelgeuse is in the stage when it's burning helium to carbon and oxygen in its core," Morgan MacLeod, a postdoctoral fellow in theoretical astrophysics at Harvard University.
Even the most casual search on the internet says that "Of all the elements, helium is the most stable; it will not burn or react with other elements." Morgan MacLeod may have been misquoted. However, wouldn't it have been more accurate to say that Helium is being fused into larger and larger atoms? Then, when the fusion reaction produces Iron, the real fireworks begin? I'm not a Physicist, but this article seems frustratingly inaccurate and poorly written