Is There Extraterrestrial Life?

According to "Earth Bacteria On Mars? Serretia Liquefaciens Could Survive On Red Planet, Study Suggests" written by Irene Klotz on The Huffington Post, scientists have found an extraordinary discovery! A bacteria called Serretia liquefaciens, which is commonly found on Earth, more specifically, in human hair, human skin and lungs and also in fish, aquatic systems, plant leaves, and plant roots is found to even exist in Mars's unusual atmospheric conditions. Furthermore, when this bacteria was relocated to a surrounding that resembled Mars's low-pressure atmosphere that is rich with carbon dioxide, it was found to posses adaptive characteristics. Schuerger, declared his amazement when he stated that this specific bacteria usually evolves at sea level; consequently, when the bacteria was able to grow in a chamber with reduce pressure, it was looked upon as a groundbreaking discovery. This experiment has lead to a controversial theory: is there truly life outside of Earth? However, scientists have realized that in order for an organism to survive on Mars, it must be shielded to protect itself from the ultraviolet radiation. Also, living organism must have access to water, organic carbon and nitrogen. I have never doubted the fact that extraterrestrial life exists. Earth cannot be the only planet that contains living creatures and animals, and to believe such a statement is a clear sign of ignorance.