Labels:text | screenshot | software OCR: OUR PLACE IN THE UNIVERSE THE EXPLOSION THAT created the force of the Big Bang is still causing it Universe flung matter in every to expand. The Universe is populated by direction. This material evolved into the galaxies, each with billions of stars. We Universe we have today. Astronomers know for certain that one of these stars put the size of the Universe at about 15 has a system of planets and that one of billion light years in radius, although the these planets, the Earth, supports life. THE UNIVERSE Our galaxy, the Milky Way Galaxy, ZOOM IN is just one of an estimated 100 billion galaxies in the 9 Universe. ZOOM OUT SEE NEXT ALSO
