If we placed Betelgeuse in our solar system, its size would be mind-blowing! This red supergiant is so massive that it would extend past Jupiter's orbit—engulfing Mercury, Venus, Earth, Mars, and even part of the asteroid belt! But here’s the real kicker: Betelgeuse is nearing the end of its life and will explode as a supernova sometime in the next 100,000 years. When it does, the explosion will be so bright that it could outshine the Moon for weeks!