Mars and Pluto Cannot Support Life: Why? Throughout the history of the Earth, people have wondered if there is life anywhere else in the universe. For centuries, they believed that the world was flat and that the sun went around the Earth. People did not know enough about the universe to Even nowadays, there are people who believe in aliens. But science has shown us why there is no other planet, at least no such planet that we know about, that is capable of supporting life. If we take our own solar system, we can understand why no other planet in the solar system can support life. The site Blue Planet says about Pluto: This planet is quite a cold place.
The temperature is around -238C. The planet has a thin of atmosphere that is in a gaseous state only when it draws slightly nearer to the sun in its rather elliptical orbit. At other times, the atmosphere becomes a mass of ice. Pluto, briefly, is a lifeless sphere enveloped in ice. From these facts it is clear that Pluto cannot support life because it is too cold and does not have gases in the cold atmosphere. Pluto is too far away from the sun, and that is why it is lifeless.
The planet Mars also cannot support life: The atmosphere of Mars cannot sustain human life because it is mostly carbon dioxide. The surface is everywhere pocked with craters: the result of eons of meteor impacts and strong winds blowing across the surface that can raise sandstorms that last for days or weeks at a time. The temperature varies rather much but drops as low as -53C. There has been much speculation that Mars might harbor life, but all the evidence shows that this is a lifeless world too. A few years ago there was a lot of excitement when a meteorite was discovered in Antarctica that showed that there were some microscopic life forms in it. But it could not be proved that the rock was actually extraterrestrial in origin.
The Term Paper on Finding The Ninth Planet Lowell Pluto Tombaugh
"To the Stars Through Difficulties" is the state motto of Kansas, the place where Clyde Tombaugh the discoverer of Pluto grew up. But it is impossible to talk about Tombaugh without speaking of Percival Lowell who first noticed that there was an anonymous ninth planet beyond Neptune, and he called it Planet X. These two ingenious and analytical men who never worked physically together were ...
Therefore there is till no evidence that there is life on mars, or that there ever was. Although the planet is not as cold as Pluto, it is still too cold to support life. The two basic necessities for life to exist, namely oxygen and water, are also not available on the planet. From the evidence, it is clear that Earth has the conditions for life that the other two planets dont have. Also, science has proved that all life has to be carbon-based, and only Earth provides the right conditions for carbon-based life to exist. Earth has a biosphere, which is a part of the atmosphere that has oxygen and water for living beings to use.
But this biosphere was not always available. Leslie E Orgel asks: When the earth formed some 4.6 billion years ago, it was a lifeless, inhospitable place. A billion years later it was teeming with organisms resembling blue-green algae. How did they get there? Scientifically, Louis Pasteurs theory of spontaneous generation and Charles Darwin and Alfred Russell Wallaces theory of natural selection are the two probabilities for life to have started on Earth. But even scientists admit that maybe the amino acids and nitrogen-containing bases needed for life on the earth might have been delivered by interstellar dust, meteorites and comets, as Orgel says. We know from studies that the Earths atmosphere was initially as hostile to life as Pluto and Mars are now.
Maybe a billion years from now, if the conditions are right, planets like Mars and Pluto may also become capable of supporting life. But that seems unlikely. The evolution of life on Earth was probably a huge coincidence, and it is not likely that it will happen again on another planet. Works Cited The Blue Planet. 2003. Harun Yahya.
3 March 2006. Orgel, Leslie E. Origin of Life on Earth. 1997. Eduardo Diaz Diaz. 2 March 2006 .
The Essay on Venus: Our Sister Planet?
Venus is known as the jewel of the sky. It was thought to be two different planets by ancient astronomers and thus referred to as the morning star and the evening star. Early astronomers also referred to Venus as Earth’s sister planet. Both are considered young planets due to the low number of craters and both are similar in size, and their chemical compositions are similar. The surface of ...
