The answer is not simple and depends on the distance between the exploding star and our planet.
In the middle of the constellation Hercules, an object that looks like a completely new star will suddenly appear in the sky.
When it happens, the explosion of a star larger than 1,000 Suns can be seen from the Earth even in the morning.
Scientists say that the Earth is experiencing the sixth mass extinction event due to human activity.
When the red giant star is 1,400 times larger than the Sun explodes, the light emitted can be observed from above the Earth.
A big collision between two stars attracted to each other in the past thousand years is likely to create a new star glowing in the night of 2022.
NASA's NuSTAR nuclear spectrophotometer is currently helping scientists decipher the mystery of how stars become supernova by mapping the remnants of the radiation material after