Astronomy

                             OUR GALAXY   Galaxy is one of the mysterious and interesting thing of the Universe, which Scientists have not yet been able to know. A Galaxy is a large collection of dust, gas and STARS. The Galaxy is the gravitationally bounded system.Scientists classified the GALAXY according to it's property.                                                  The 'MILKY WAY' is our Galaxy. Our Solar - System is a part of Our Galaxy and Earth, where we live is one of the planet of Our Solar - System. TYPES OF GALAXY: There are three major types of Galaxy: 1. Spiral galaxy 2. Elliptical Galaxy. 3. Irregular galaxy 1.SPIRAL GALAXY :-Spiral galaxy is one kind of GALAXY. These are the most common type in the Universe. Our Galaxy MILKY- WAY is a Spiral ...

           ASTRONAUT  An   astronaut  or  cosmonaut  is a person trained by a  human spaceflight program  to command, pilot, or serve as a crew member of a  spacecraft . Although generally reserved for professional space travelers, the terms are sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists. [1] [2] Until 2002, astronauts were sponsored and trained exclusively by governments, either by the military or by civilian space agencies. With the suborbital flight of the privately funded  SpaceShipOne  in 2004, a new category of astronaut was created: the  commercial astronaut . Read more... https://spaastronomy.blogspot.com/2018/12/list-of-astronaut.html?m=1