Black holes are made when a star is at …show more content…
Well, black holes can be big or small. Scientists believe that the smallest black holes are as small as just one atom. These tiny things might be small, but they have a mass of a large mountain! Mass is the amount of matter in an object. There are other kinds of black holes, too! There are bigger black holes that are called “stellar” black holes. Stellar black holes can have a mass 20 times more than the sun! There are many stellar black holes in Earth’s galaxy. Earth’s galaxy is called the Milky Way, but it’s not a candy bar! Stellar black holes aren’t the biggest, though! There are bigger black holes called “supermassive” black holes. These kinds of black holes have the mass of OVER A MILLION SUNS TOGETHER!!!WOW!That’s a lot of mass! Scientists have discovered proof that every galaxy has a supermassive black hole in the center! The supermassive black hole found in the center of the Milky Way was named Sagittarius A, and do you believe me when I say that Sagittarius A has the mass of about 4 MILLION