THE MILKY WAY

Milky Way galaxy skyscape over MangaiaThe Milky Way Galaxy is most significant to humans because it is home sweet home.But when it comes down to it,our galaxy is a typical barred spiral,much like billions of other galaxy in the universe.Let's take a look at the Milk way.

LOCATION,LOCATION

A glance up the night sky reveals a broad swath of light.Described by the ancient as a river,as milky way,and as a path, among other things,the band has been visible in the havens since Earth first formed.In reality, this intriguing line of   light  is the center of our galaxy,as seen from          [This heavenly view of the Milky Way galaxy
one of its outer arms.                                                 was taken in the South Pacific paradise of
                                                                                   Mangaia the most southerly of the cook islands.]

"The sun's location within the dust-obscured galactic disk is a complicating factor to observe the galactic structure," Denilso Camargo, of the Federal University of Rio Grande do Sul in Brazil.
The Milky Way is a barred spiral galaxy, about . If you could look down on it from the top, you would see a central bulge surrounded by four large spiral arms that wrap around it. Spiral galaxies make up about two-third of the galaxies in the universe.Unlike a regular spiral, a barred spiral contains a bar across its center region, and has . The Milky Way also contains two significant minor arms, as well as two smaller spurs. One of the spurs, known as the Orion Arm, contains the sun and the solar system. The Orion arm is located between two major arms, Perseus and Sagittarius.
The Milky Way does not sit still, but is constantly rotating. As such, the arms are moving through space. The sun and the solar system travel with them. The solar system travels at an average speed of 515,000 mph (828,000 km/h). Even at this rapid speed, the solar system would take about 230 million years to travel all the way around the Milky Way."Spiral arms are like traffic jams in that the gas and stars crowd together and move more slowly in the arms. As material passes through the dense spiral arms, it is compressed and this triggers more star formation," said Camargo.Our galaxy is surrounded by an  of hot gas that extends for hundreds of thousands of light-years. The gas halo is estimated to be as massive as all of the stars in the Milky Way. Like the galaxy itself, the halo is spinning rapidly.                                                                                                                                                                                                                                                                                                                                                       
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