One of the biggest stars may explode in the sky in the next few weeks: Betelgeuse is one of the biggest red supergiant stars in the Orion constellation, which is expected to explode in the next two weeks. From December, this star, which is a thousand times bigger than sun and 700 light-years away, is getting its brightness reduced to only 36 % of its capacity now.
As for predictions by astronomers, if it explodes, it would appear as bright as the full moon in the sky and also will remain that way for another six months, which is possible to even view with the naked eye.
As per NASA, Betelgeuse is believed having the size which is in-between the diameter of Mars and Jupiter's orbits and estimated to have a mass or 11 to 12 times of sun. But the size and distance are not definite, confirms NASA. But it is expected to be a few million years old. Only from places like European Southern Observatory telescope in Chile, it is possible to view Betelgeuse surface and take snapshots of it.