How Many Atoms Are In The Milky Way

The Milky Way contains how many atoms?

A hundred to four hundred billion stars make up our galaxy, the Milky Way. We can estimate that our galaxy contains approximately (1. It consists of time, light, dust clouds, planets, stars, and even living things. Time, space, and matter did not exist before the creation of the universe. There are billions of galaxies in the universe, and there are millions to billions of stars in each galaxy.It turns out that dark energy makes up roughly 68 percent of the universe. Roughly 27% of matter is dark matter. Less than 5% of the universe is made up of everything else, including everything that has ever been observed using all of our instruments and ordinary matter.Normal matter, dark matter, and dark energy are the three types of substances that are thought to make up the universe. The atoms that make up stars, planets, people, and all other objects that can be seen in the universe are considered to be normal matter.Our galaxy has a mysterious halo because, according to scientists, dark matter makes up 90% of its mass. Therefore, all of the luminous matter – i. Less than 10% of the mass of the Milky Way can be seen with the unaided eye or through telescopes.Everything exists in the cosmos. It includes all of the matter and energy that is present in space. It encompasses everything, including time itself and, of course, you. The other planets and their numerous moons, as well as Earth and the Moon, are all a part of the universe.

There are how many particles in space?

Even that inconceivable number, however, doesn’t cover much of the total volume given the vastness of the universe. In the universe, there would only be about one particle per cubic meter if there were 3. After all, most of the universe is empty. Although the majority of the gases in interstellar space are composed of hydrogen and helium, minuscule amounts of other elements, including carbon, oxygen, and iron, are also present. Spectrometers are tools used by astronomers to find traces of other molecules between the stars.Most people think of space as being entirely empty. But this is untrue. There is an enormous amount of thinly layered gas and dust filling the vast spaces between the stars and planets. There are at least a few hundred atoms or molecules per cubic meter in even the most empty areas of space.Interstellar medium refers to the components of interstellar space. The interstellar medium is composed mostly of helium atoms, with hydrogen atoms making up about 70% of its mass. Trace amounts of heavier atoms produced by stellar nucleosynthesis have been added to enrich this.Molecular oxygen, which is the substance you can breathe and is made up of two atoms (O2) joined together, is incredibly rare despite decades of astronomy. In space, hydrogen (H2) molecules outnumber oxygen (O2) by a million to one, according to Science . O2 is plentiful on Earth.