Cosmic Life and Death of a Star

This nebula is a gas and dust born in the nebula as a star in a nursery studded with stars, called nebula, mainly in the spiral arms of the galaxy. These clouds are mainly composed of hydrogen, but they also contain carbon, oxygen and various other elements, but you can see that carbon and oxygen play an important role in the formation of stars. However, the nebula itself is not enough to form a star, it needs some help from external forces. Shock waves from stars, supernovae and other events moving at short distances can produce the desired effect.

Let's take a look at the black hole, one of the most exotic cosmic objects. A black hole is normally formed by the death of a superstar. When the star's lifetime expires, it will explode the giant gas and dust called supernova. In that process, if the mass of the dying star is less than 3 solar mass it will be a neutron star, but if it is bigger then it will be this space monster called a black hole. It absorbs everything in the neighborhood, even light can not escape from the black hole. In the 1950's Einstein interpreted the black hole as a place where the space-time structure was extremely bent. According to relativity, the theoretical possibility is that time can be shortened by making the space-time curve exceed a certain limit. However, many scientists did not accept it, even Einstein did not make any important comments about this.

JANNA LEVIN: Unlike Cygnus X - 1, this is more than just eating. This is a 10 - year feeding frenzy, a big black hole swallows the whole star in a blink of an eye. This is the result of a casual conflict, when the unhappy star is too close and the extreme gravity of the black hole really tears it. PRIYAMVADA NATARAJAN: We have realized that there is a series of physical conditions that make it possible to form a very large gas disc before forming stars. Therefore, this gas disk begins to become unstable, which will allow the mass to flow very quickly into the center and form a very large black hole.

When looking at the scale of the universe, humans live in small sand granules floating in the imaginable deep sea. Huge space ensures that important efforts are required for launch in interstellar waters, if you want to separate the nearest stars and fully intelligent life forms spread throughout the galaxy . Let's think for a moment: The brightness from the sun's surface to the Earth's atmosphere is 8 minutes 20 seconds. When you look up at the sun, the heat of the sun you feel spread through the interplanetary space for 90 million miles and reach your skin within 9 minutes.