ESA’s Gaia To Update The Map Of Milky Way Galaxy

ESA’s Gaia To Update The Map Of Milky Way Galaxy

The Milky Way had been described since it was first viewed as a barred spiral galaxy whose diameter varies between 150,000 and 200,000 light-years. Astronomers believe, after extended researches, to contain between 100 and 400 billion stars and above 100…