Is a supernova good or bad?
Supernovae are thus essential to life. After a core collapse supernova, all that remains is a dense core and hot gas called a nebula. When stars are especially large, the core collapses into a black hole. Otherwise, the core becomes an ultra-dense neutron star. Supernovae are dramatic explosions that take place during the final stages of the death of a supermassive star. Most stages of astronomical evolution happen over timescales far longer than a human lifetime, and even far longer than humanity’s entire history. Supernova explosions are spectacular exceptions to that rule.Observations of recent supernova remnants within the Milky Way, coupled with studies of supernovae in other galaxies, suggest that these powerful stellar explosions occur in our galaxy approximately three times per century on average.Today, astronomers distinguish two types of supernova: those involving white dwarfs, and those that are the explosions of very massive stars. Both types are responsible for creating and spreading new elements through space, which are the chemical building blocks for the next generation of stars and planets.Supernova explosions are the most powerful events in the universe. In less than a second, as much energy is released (about 1044 Joules) as the Sun has released in its entire lifetime! The explosion results from the death of a massive star which has consumed its fuel supply.
Is Supernova a good movie?
A tender and compelling film There was nothing flashy or over the top, and the central performances from Firth and Tucci were both gentle and very genuine. You can’t help but find yourself asking what you would do in their situation. The movie stars Colin Firth and Stanley Tucci as a long-term gay couple, Sam and Tusker, who embark on a road trip through England.