If Betelgeuse exploded, transitioning from the red supergiant stage to supernova, it would light our sky continuously for two months.

Betelgeuse lies some 430 light-years from Earth, yet it’s already one of the brightest stars in Earth’s sky. The reason is that Betelgeuse is a supergiant star — the largest type of star in the Universe. Betelgeuse has a luminosity about 10,000 times greater than that of the Sun and its radius is calculated to be about 370 times that of the sun. If it were positioned at the center of our sun, its radius would extend out past the orbit of Mars. Because it’s near the end of its lifetime, Betelgeuse is likely to explode into a supernova.