An Research of the Dilemma of Solitude in the Universe for the Human being Race

Are we by itself in the universe? That is clearly a question that people have faced since 1958. Planetary and lunar missions have already been trying to prove that people aren't alone in this universe since 1958 and so are scheduled to take action up until 2004. Scientists are seeking water, organic and natural molecules and a power source that may support lifestyle on planets apart from Earth. Life is defined as being truly a top quality that separates a essential and functional getting from an inanimate object. There are three houses that are considered characteristics of living organisms: fat burning capacity, growth, and reproduction. Living factors use strength from their environment to live. Living stuff are organized into products called cells and living things also react to stimuli. Living points develop and adjust to their environment, to survive on the planet. They need to reproduce for potential generations to preserve their species from heading extinct. Scientists apply these three characteristics of existence while looking forever existence on different planets and moons inside our solar system. Many voyages and expeditions have already been made into space in the search for extraterrestrial life. One of the largest expeditions into space was in 1975, when NASA sent its Viking Objective to Mars. It started to be the first project ever sold to land a spacecraft safely on the top of another world. This mission was made up of two spacecrafts, Viking 1 and Viking 2. Each one of these spacecrafts contains an orbiter and a lander. Each orbiter-lander pair flew jointly and entered Mars orbit; over time the landers after that separated and descended to Mars area. Viking 1 was launched on August 20, 1975 and attained Mars on June