External Feed - Dust Simulations Paint Alien's View of the Solar System   

Debate - Are we alone in this universe?    Various factors have contributed to the existence of human beings in this world. To mention a few, water from comets, perfect distance from the sun, protection by Jupiter against asteroids headed towards the earth. Do these factors make Earth unique in the universe where life is possible? Opposition can argue that the discovery of water in objects such as Europa or the presence of billions of galaxies should lead us to life outside Earth. Proposer should argue that we are unique, while opposition should argue we are not. Please adhere to standard debate procedures, with lots of scientific arguments.