Question

What is the name of the galaxy we live in?

Answer 1

Hint:A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter that consists of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy comes from the Greek galaxias, which means "milky" and refers to the Milky Way galaxy. Galaxies range in size from dwarfs with a few hundred million (108) stars to giants with one hundred trillion (1014) stars, all orbiting their galaxy's mass centre.

Complete step-by-step solution:
The Milky Way is the galaxy that contains our Solar System, and its name refers to how the galaxy appears in the night sky from Earth: a hazy ribbon of light created by stars that cannot be recognised individually with the human eye. Because its disk-shaped structure is observed from within, the Milky Way looks like a band from Earth. In 1610, Galileo Galilei used his telescope to resolve the band of light into individual stars for the first time. Most astronomers believed that the Milky Way contained all of the stars in the Universe until the early 1920s. The Milky Way is a barred spiral galaxy with a diameter of 100,000–200,000 light-years and an estimated visual diameter of 100,000–200,000 light-years. According to recent calculations, a dark matter disc including some visible stars may have a diameter of over 2 million light-years. The Milky Way has many satellite galaxies and is a member of the Local Group of galaxies, which is a component of Supercluster's Virgo Supercluster. In extragalactic frames of reference, the Milky Way as a whole moves at a speed of around 600 kilometres per second. The Milky Way's stars are nearly as ancient as the Universe itself, having originated shortly after the Big Bang's Dark Ages.

 Note:From Earth, the Milky Way appears as a 30 degree broad hazy ribbon of white light arching over the night sky. Although all of the individual naked-eye stars in the whole sky are part of the Milky Way Galaxy, the name "Milky Way" is confined to this strip of light when watching the night sky. The light comes from a buildup of unresolved stars and other debris in the galactic plane's direction. Around the band, brighter areas appear as soft visual patches known as star clouds. The Large Sagittarius Star Cloud, which is part of the galaxy's central bulge, is the most visible of them.