Humans have been studying life in space for years and have yet to find a planet that is thriving like Earth. However, scientists believe that there may be 100 billion Earth-like planets that are just waiting to be found, with hundreds possibly homing intelligent life forms.
As the Earth is a rocky planet, is seems right to begin to look for other life on other rocky planets. Mercury is too close to the sun making it too hot and is therefore, inhabitable. Pluto on the other hand is the opposite, its too far away and is too cold to support life. At first glance, Venus is an inhospitable planet. It is cloaked in thick clouds of sulphuric acid. These trap heat and fry the planet to over 500ºC - so Venus is also out of the question although some scientists now believe life could survive in the clouds. The most likely and sensible candidate is Mars. Out of all the planets in the Solar System, Mars is most like Earth. And it's also the most likely to contain life. Europa is about the same size as our Moon. At first glance, it looks like a dead, frozen wilderness. The entire surface is cloaked in a layer of ice. But this inhospitable planet may harbour an underground ocean of liquid water - one of the essential ingredients for life. Jupiter's moon should contain all the chemicals necessary for life to begin.
Going back to Mars, there has been excitement at the fact that Mar’s may have the possibility of life. The possibility that water has existed on Mars, or might be located under the surface of the planet has led scientists to think again about the possibility of life on Mars, or indeed on other planets across the universe. As yet we have not found any trace of such life and currently we have no way of knowing what form life might take on other planets.
Another reason supporting life on other planets is the Planets Loneliest Bug, named Desulforudis audaxviator, or bold traveller in English. It relies on water, hydrogen...