Cosmic Journey : What are the origin, evolution and fate of the Universe? Two of the most profound questions that all cultures, both past and present, have asked are: where did we come from and what is our destiny? Throughout history philosophers, theologians, and scientists have debated these questions. At the beginning of the 20th century, astronomers were unsure of the size of our galaxy. Generally, they believed that our solar system was near the center of the galaxy. ... Full Text

Cosmic Collision

Our home galaxy the Milky Way and Andromeda galaxy are on a collision course! The Andromeda is the most distant object one can see with naked eye. Code named M31 or Messier 31, Andromeda is a giant spiral galaxy of about 300 billion stars. This galaxy is about twice as big as the Milky Way and about 2.5 million light years away from us. The galaxy is moving towards to our own Milky Way at a speed about 500,000 km/hour. Scientists believe ... Full Text

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