How did life first appear?

                       No one knows exactly how life on the Earth began. Most scientists think that it started as a result of reactions taking place in the soup of chemicals dissolved in the ancient seas. The atmosphere contained poisonous gases, and fierce electrical storms raged.

                     In laboratory experiments conditions such as the ones above can produce the substances found in living creatures. Some of these substances have been found in freshly fallen meteorites, so they are also being created elsewhere in the Universe.

Picture credit: google