As the myth goes, if you say Betelgeuse three times in a row you can see it. Well, thanks to ALMA (Atacama Large Millimeter/submillimeter Array) we now have the most detailed photo to date of the surface of the star. It's pretty undefined, but this HAL-looking image was taken of an object that is 600 light years away, about 1,800 TRILLION miles away. It's impossible to put a number like that in perspective, but 1 trillion seconds is the same as 31,688 years so 1,800 trillion seconds would be over than 57 million years.
We like photographing Betelgeuse as it's one of the brightest stars we've ever discovered and is about 1400x the size of our Sun. Like bigger engines, bigger stars burn fuel much faster, exponentially so, and thus huge stars lead very short lives. Already 8 million years old, we expect the star to be nearing its end. Whenever the day comes that we see it go supernova, it will be bright enough to be visible with the naked eye even in broad daylight!
Quick reminder that since it's 600 light years away, it could have already gone supernova when Galileo was first searching the sky and we still wouldn't know about it here on Earth for around another 200 years.