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MILKY WAY GALAXY PART 1

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by

mariah perez

on 30 January 2014

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Transcript of MILKY WAY GALAXY PART 1

LOCATION
LIGHT YEAR AND SPEED OF LIGHT
A unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 trillion miles).And the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second
HOW MANY LIGHT YEARS IS ACROSS OUR GALAXY
The Milky Way is a barred spiral galaxy, about 100,000 light-years across. 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.
MILKY WAY GALAXY
MILKY WAY
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