Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
The Milky Way Our celestial home is the __________________. It is _________ light years across, and _______ light years deep- it is quite large! It contains approximately _______ stars. Amazingly, there are many other galaxies besides the Milky Way. The name “Milky Way” comes from ___________, who called the white streak across the heavens a ______ of _______. _________ was the first person to suggest that the Milky Way is actually made up of millions of distant stars. It was proven _______ years later when _________ observed this band of stars through his telescope. The Milky Way, like all other galaxies, is a complex system of ________, _________, ___________ and other matter, bound together by ________. They are often classified by their _______. The three main classifications of galaxies are ___________, __________, and ___________. Our galaxy is a ________________. A light year is the ________ light ________ in a _______. Our solar system is a tiny speck, located on an outer arm of the galaxy called _________________. We orbit the center of the Milky way, at a rate of_____________ miles per __________. It would still take us a very long time to complete one rotation. Scientists use radio ___________, __________ imagery and physics to observe our galaxy. Everything in our galaxy orbits a supersized _________________. It is estimated that the Milky Way is moving through space at a rate of ___________ miles per _____________, picking up other galaxies and parts of other galaxies as it goes. Every year, about _______ new stars are formed.