its a big big world!

based on the information gathered ,astronomers have now come up with a new map of of the galaxy,milky way.scientista say that our galaxy is about 50 pe cent more massive and spins about 100,000 miles per hour faster than they had previously thought.that means that the more mass a glaxy has,the faster it spins.the new study also says that our galaxy has mass which is equal to three trilion suns! so with this study ,scientists will have a better understanding of how our galaxy has changed over time with this new and more accurate map.