Thousands of years ago, on a small rocky planet orbiting a modest star in an ordinary spiral galaxy, our remote ancestors looked up and wondered about their place between Earth and sky. Like them, we ask the same profound questions, such as how did the universe begin? Today, we are beginning to answer these questions. Using tools of science that range from
abstract mathematics and computer modeling to laboratories and observatories, humans are f
illing in the details of the amazing story of the universe. In the last 40 years, space probes and space observatories have played a central role in this fascinating process. I read an article at essay writing service reviews
about the topic galaxies.