A supernova is death or the beginning of a new life?

Quite rarely can people see thisinteresting phenomenon like a supernova. But this is not an ordinary star birth, because up to ten stars are born annually in our galaxy. And a supernova is a phenomenon that can only be observed once every hundred years. The stars die so bright and beautiful.

To understand why a supernova explosion occurs,need to go back to the very birth of a star. Hydrogen flies in space, which gradually collects into clouds. When the cloud is large enough, compacted hydrogen begins to gather in its center, and the temperature gradually rises. Under the action of gravity, the core of the future star is collected, where, due to the increased temperature and increasing fusion, the fusion reaction begins to take place. How much hydrogen a star can attract to itself depends on its future size - from a red dwarf to a blue giant. Over time, the balance of the star's work is established, the outer layers put pressure on the core, and the core expands due to the energy of fusion.

The star is a peculiarthermonuclear reactor, and, like any reactor, someday it will run out of fuel - hydrogen. But in order for us to see how a supernova exploded, a little more time must pass, because instead of hydrogen, another fuel (helium) was formed in the reactor, which the star would burn, turning it into oxygen and then carbon. And this will continue until iron is formed in the core of the star, which does not release energy during a thermonuclear reaction, but consumes it. Under such conditions a supernova explosion may occur.

The core gets heavier and colder as a resultlighter upper layers begin to fall on him. The fusion reaction starts again, but this time is faster than usual, with the result that the star just explodes, throwing its matter into the surrounding space. Depending on the size of the star, small "stars" may also remain after it. The most famous of them are black holes (a substance with an incredibly high density, which has a very large force of attraction and can emit light). Such formations remain after very large stars, which have managed to produce thermonuclear fusion to very heavy elements. Smaller stars leave behind neutron or iron small stars, which almost do not emit light, but also have a high density of matter.

New and supernovae are closely related, becausethe death of one of them may mean the birth of a new one. This process continues indefinitely. The supernova disperses millions of tons of matter into the surrounding space, which again gathers into clouds, and the formation of a new celestial body begins. Scientists say that all the heavy elements that are in our solar system, the Sun, during its birth, "stole" the once exploded star. Nature is amazing, and the death of one thing always means the birth of something new. In open space, matter disintegrates, and in stars it forms, creating a great balance of the Universe.