Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe. This multidisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry and life on Mars and other bodies in our Solar System, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in space. ... 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