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Goldilock's Requirements To Be A Habitable Zone

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Habitable zones are regions around a star in which a planet can possess H2O (water) on their surface. It is also one that can actually sustain life or water only in its liquid form. This definition was based on the hypothesis that life may be existing on other planets around the universe other than the Earth. Requirements to be a Habitable Zone is the star around the planet or region must survive long enough for the planet to develop life and that the other planets in that region have the proper distance from its star so that the planet could have water remain as a liquid. For example, the Earth!
Our Earth so far is probably the only planet we know 100% that is a habitable planet. What makes Earth habitable is its precise distance from out …show more content…

It is named this to tell you that the planet that lies within a Habitable Zone has a name which is called a Goldilocks planet. The actual name came from the story we are all familiar with “Goldilocks and the Three Bears.” Like in the short story the planets must be just right for it to be considered to be in a Habitable Zone. This is like Goldilocks choosing from 3 sets of items; ignoring all the extremes she went to the one that was “just right”. The finding of Earth-sized Goldilocks planets was the primary purpose of the Kepler Mission, which was one that used space telescopes to estimate and organize the characteristics of habitable-zoned planets. On November 4th, 2013, astronomers reported that there are possibly about 40 billion Earth-sized planets orbiting in habitable zones of sun-like stars and red dwarf stars the on in our Milky Way. The nearest earth-like planet in a habitable one seems to be approximately 12 light years away. On July 24th, 2015 Kepler-425b became to be believed by several astronomers to be the most Earth-like planet yet. It had orbited a very familiar distance from its star even though its radius was 60% larger than Earths. On July 23, 2015, this planet was stated to be the most Earth-like one to ever be found. This planet was actually located 1,400 light years away from our planet. NASA now named it “Earth 2.0” because it is the very first small rocky planet to be discovered in a habitable zone. …show more content…

There are 3 planets Mars, Venus, and Mercury that are closest to being Earth-like and are called Terrestrial planets. Mars today is not a habitable planet for humans to make a living on but is told by scientist and astronomers that on a day in the future it may be. The future for Mars would be dependent heavily on local Red Planet Resources, such near surface water and glaciers. Evidence starting in the 21st Century have evidence building that liquid water may be flowing through seasonally at some of the Martian sites, which could prove life up there as all others predicted. So until further more test is done yearly; Mars, for now, is not yet habitable but may become one soon yet to be known. Switching to Venus, the planet that is most Earth-like. Astronomers believe that Venus may have been a habitable planet once is the past (about 2 billion in our Solar Systems history). This prediction came from the founding of Venus having a crushed Carbon Dioxide atmosphere that is 90 times thicker than our Earth’s, and there is also no water vapor. But there has been a discovery that Venus had a shallow liquid state water ocean. Recent studies have shown that the speed of a planet's orbit can determine if a planet is habitable. Venus, in this case, was to have a slow orbit rate since it had the thickest atmosphere. Astronomers in the past have recorded that Venus had more dryland in the past than Earth does

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