The galaxy that contains our Solar System is known as the Milky Way. It is a banded spiral galaxy that contains a bar across the center region and has two major arms, two minor arms and two smaller spurs. Our solar system is contained in one of the spurs known as Orion arm. The Orion arm is situated between the two major arms called Perseus and Sagittarius. The Milky Way galaxy is on a constant move and our solar system moves along, too. The solar system travels at an average speed of about 500,000 miles per hour.
The spiral arms of the Milky Way enclose abundant numbers of gas and dust. And every now and then, new stars are being born and formed within the arms of the galaxy. At the center of the galaxy resides the galactic bulge. This is jam-packed with thick dust, gas and stars. At the very center of the galaxy is the horrific black hole. The black hole is billion times more enormous than the Sun. It was believed that the black hole started as small in size but because of the abundant supply of gas and dust that it engulfs with, it become into a very massive giant. It devours all kinds of stars that it can hold on to. The black hole cannot be seen directly, however, their gravitational effects can be observed. The Milky Way galaxy is also surrounded by a spherical halo that is made up of old stars, hot gas and circular clusters which expanses for about hundreds of thousands light-years.
Most galaxies only contain visible materials like stars, gas and dusts. However, the Milky Way galaxy is also made up of dark matter. This dark matter comprises about 90 percent of the total mass of the galaxy. The Milky Way has about 200 billion stars and is about to create billions more. The most common stars are called red dwarfs which measures about tenth the mass of the sun.
One of the frequent questions astrologers get is how to buy a star. There are many star registry services available, but nameastarlive.com is the only service which offers a space launch experience. It’s a novelty purchase, but offers a great way to introduce children to astronomy or memorialize a special person or event. The Milky Way is a popular choice of star gazers to name stars.
The Milky Way is not the only galaxy in the universe. And one certain prediction that could happen in about four billion years is the collision of the Milky Way with its neighboring galaxy, the Andromeda galaxy. They have been in rush towards each other at about 70 miles per second. When the collision of these two galaxies happens, there will be an inflow of materials that will kick start formation of new stars. The enormous presence of stars and galaxies in the universe makes collision possible.