The indication of this is that given the right conditions, chemistry will move in the direction of complex molecules resembling those of life on this planet. This is good news for seekers of extraterrestrial life. This indicates that 200 million life-bearing planets may exist in the Galaxy. Assuming that life-bearing planets are scattered at random throughout the Galaxy, the nearest one to the Earth is 600 million million miles away. Let's put that huge figure into perspective .
Light is the fastest thing possible.
In one second it will travel seven times around the Earth. It takes light 1.5 seconds to travel from the Earth to the Moon. From the Sun, light takes 8.3 minutes to travel to the Earth. From the nearest star, light takes 4.3 years to reach us. If Einstein was correct and nothing can travel faster than light, we may never be able to travel those distances.