Life on Mars
Extraterrestrial life and Background:
It is very important that we investigate the possibility of life on Mars. No location has been pinpointed by our science more whether it be science itself or science-fiction. Educated speculation indicates that if there is life on the Planet it is in the rocks, below the surface of the planet or in caves. Life may also exist on the Planet in places where there is an extremely low elevation that makes for an increase in atmospheric pressure and thickened atmosphere with enough local magnetism to preserve the life in that location. Mars is a dry bleached planet even though water is present below the surface and dry ice is present on it’s surface It is constantly bombarded with strong solar radiation with temperatures averaging -80 F. Equivalent to the coldest place on Earth in Antarctica. The surface from what we see today is completely lifeless.
Extraterrestrial life is defined as life that does not originate from Earth. It is often also referred to as alien life, or simply aliens (or space aliens, to differentiate from other definitions of alien or aliens). These hypothetical forms of life range from simple bacteria-like organisms to beings far more complex than humans. The possibility that viruses might also exist extraterrestrially has been proposed. Many scientists consider extraterrestrial life to be plausible, but there is no direct evidence of its existence. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial life, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets.
Alien life, such as bacteria, has been hypothesized to exist in the Solar System and throughout the universe. This hypothesis relies on the vast size and consistent physical laws of the observable universe. According to this argument, made by scientists such as Carl Sagan and Stephen Hawking, it would be improbable for life not to exist somewhere other than Earth. This argument is embodied in the Copernican principle, which states that the Earth does not occupy a unique position in the Universe, and the mediocrity principle, which holds that there is nothing special about life on Earth. Life may have emerged independently at many places throughout the Universe. According to these studies, this same process may also occur around other stars that acquire planets. Suggested locations at which life might have developed include the planets Venus and Mars, Jupiter's moon Europa, and Saturn's moons Titan and Enceladus. Since the 1950s, scientists have promoted the idea that "habitable zones" as the most likely places for life to be found. Numerous discoveries in this zone since 2007 have stimulated estimations of frequencies of Earth-like habitats numbering in the many billions though as of 2013, only a small number of planets have been discovered in these habitable zones-especially where planets are believed to have water. More recently, astrobiologists have increasingly shifted toward a "follow the energy" view for potential habitats.
Mars Express- Life on Mars
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