This document discusses evidence of the possibility of life on Mars. It notes that after Earth, Mars is the most hospitable planet in the solar system and may have once supported primitive life. Evidence suggests liquid water flowed on the surface billions of years ago. Continuing exploration aims to find the truth about existing life on Mars. While conditions are currently too cold for liquid water, there is evidence water once existed in various forms like ice and vapor.

1. Essay about Life On Mars
Life on Mars
If life ever evolved on any of the other planets, Mars is the likeliest candidate. After Earth, Mars is the planet with the most hospitable climate in the
solar system. So hospitable that it may once have inhabited primitive, bacteria–like life. Outflow channels and other geologic features provide extensive
evidence that billions of years ago liquid water flowed on the surface of Mars. Continuing changes is an accomplishment in modern American
technology and it gives the world a step forward in finding the real truth about existing life on Mars. Hurtling in from space some 16 million years
ago, a giant asteroid slammed into the surface of Mars and exploded with more power than a million hydrogen bombs. This caused huge...show more
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Plant life would be "pinned down" because of the atmospheric pressure. Within the canals of Mars, the search for Martian vegetation continues. Further
more, Goldsmith 12A , scientist of astrophysics, had found oxygen and water vapor on Mars.
There is abundant evidence that Mars has "volcanism tectonism" in other words, volcanoes. A transition from a warmer earlier climate to the colder
present climate may have resulted from loss of atmospheric gases to space. "Scientists believe there are volcanoes, wind–related movement of material,
ice – and water – related geology." (Dick, Steven J 119D)The average surface temperature of Mars is only about –53 C, substantially below the
freezing point. Water is said to be abundant on Mars away from the polar caps however, liquid water is not stable on Mars. Although temperatures can
occasionally rise above the melting point, liquid water from melting ice would quickly evaporate into the atmosphere. In addition, liquid water is the
single environmental requirement thought to be essential for life. Mars still has water in the form of permafrost, water vapor, ice–soil layer, and at
times, liquid water. "The network of channels on the cratered surface of Mars showed the liquid water and warm climate allowed the water to flow
freely on Mars," exclaimed Jakosky, Vuce. (7C) On August 7, 1996 the world became aware of life on Mars. President Bill Clinton announced that a
meteorite found in Antarctica contains evidence of the
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2. Mars Vs Red Planet
Every now and then, we heard news about our neighboring planet Mars. As we speak, many people have thoughts of living there when and if Earth
gets congested. Can we really reside on the Red Planet? Will Mars be our new home?
Many said that Mars is the best planet that is suitable for us to live in that's why many space exploration has done by NASA to get there to explore if
we can really survive and search for possible life. Just recently, the Red Planet was featured in the movie "The Martian" starring Matt Damon as Mark
Watney who survived 549 SOL's which is equivalent to 564 Earth days. And late last year, sightings of a lake on the Red Planet urged NASA to
investigate more if life does exist.
According to Christian Science Monitor, the
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3. Water On Mars
In the article "Mars Shows Signs of Having Flowing Water, Possible Niches for Life, NASA Says" written by Kenneth Chang the central idea is that
there is a probability of life on another planet other than Earth. The reason this article is important to us is because with these findings, researchers
will be eager to follow up on the discovery so that we can find out if the probable signs of liquid water flowing mean that life could sustain on Mars. For
many years scientists have been interested in knowing whether or not there is other life and if there has previously been life on other planets. With this
discovery, we are getting closer to coming up with possible answers.
In the past year, researchers have found probable signs of liquid water flowing on Mars' surface, such as waterlogged molecules, leading to the idea
that Mars could possibly sustain life. Hydrated salt was seen through the orbital camera, this is significant because hydrated...show more content...
Or why do we care that there could have been life before us on another planet? The answer is simple, we know that water is essential to life, so water on
Mars means life. Mars is the only planet that we have discovered with signs of water, which makes this an important discovery. Mars is also very close
to Earth in the solar system, which makes this relevant to us. If we could find evidence of life on Mars it is possible that we could use findings to our
benefit, we could use this as a reason to keep looking further into Mars. If the research of Mars continued, researchers could dig deep into the layers of
Mars and possibly find even more clues all leading to the hopeful discovery that life does live or has lived on Mars. It is possible that one day in the
future NASA will be able to send an astronaut to Mars. However, with everything stated above, there still needs to be more research done to find out if
life could really sustain on
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4. Essay on The Mars Experience
The Mars Experience
One night I was in my bed dreaming about my dream vacation, the red planet, Mars. In my dream I did many wonderful things. I climbed large
mountains, swam in volcanoes, and was chased by insane martian animals.
I took off by myself at New York's Universal Space Station in my brand new luxury spaceship. After about a day of enjoyable flying I arrived at Mars.
After gaining clearance, I took the massive ship in for a smooth landing at Mars' Universal Space Port.
There I eased my spaceship into the incredibly humongous parking garage. I leisurely got out of my ship and was happily greeted by friendly
Martians. The Martians, a curious species, were fascinated by me. They escorted me to the car rental...show more content...
My tour of the vast planet would not start until the next morning.
After a good night of well deserved sleep I awoke and got ready for my tour. I arrived at the travel agent's office where the tour was awaiting my
arrival. The Martian tour guide took me to all the great places on the planet of Mars. First, he took me to the highest mountain on Mars, Mt. Spiff,
which was fifty times as high as Earth's highest peak, Mt. Everest. With our modern equipment it only took us about three years to climb the seemingly
infinite peak. After reaching the top, we , tired and exhausted, put on our skis and headed down the steep slope. WHAT SPEED!!! Thankfully, that only
took us about a couple of weeks.
Next, we traveled to the other side of the planet to an active volcano ,Mt. St. Nugeegy. There, we proceeded to climb to the edge. Then, when we
reached the top we decided to jump in the molten hot liquid rock. It was hot but boy did it ease my sore muscles.
After getting out and cooling off we headed out to the desolate Frikkalitz Desert where we spotted some very interesting nomadic creatures roaming
around eating each rocks and sand. The tour guide said that the creatures, smelly chackaloos, are rockeaters, who enjoy eating rocks. He also said that
children enjoyed teasing them by throwing eggs at them. After contemplating the consequences of such activities we decided to do it. We laughed
hysterically

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6. Is There Life on Mars?
IS THERE LIFE ON MARS? If you have a chance to go to a country side where you may have a clear view of the sky at night, you probably will
discover a red star. That is probably Mars. With its bright and reddish color, Mars stands out for and easily noticed since the ancient times (Discovery).
In 1877, astronomer Giovanni Schiaparelli discovered several crisscrossing lines on Mars that he believed to be the canals of water (Discovery). Go
along with the hypothesis that life existed on Mars, several processes has been made to prove hypothesis. However, is there really lives on Mars or
people are just wasting their times and money to prove the thing that never exists?
Mars is a one of five planets that can be seen from Earth without...show more content...
Also, since Mars has two large region of polar ice caps, people thinks that that can be the source of water. However, not every composition of ice is
the same. On Earth, polar ice caps are mainly water ice, while on Mars; it is only mixture of carbon dioxide ice sublimes in summer and forms again
to solid form in winter (Life). The transformation does not result to water.
Idea about the existence of water on Mars is crucial to decide about the existence of life on the Red Planet. The mission of the Mars Exploration Rovers
of 2004, organized by NASA, was not to look for present or past life, but for evidence of liquid water on the surface of Mars in the past (Life). In June
2000, evidence for water currently under the surface of Mars was discovered in the form of flood–like gullies (Life). Deep subsurface water deposits
near the planet's liquid core might form a present–day habitat for life. However, in March 2006, there is similar discovery on the Moon, which is
believed to have never had liquid water on its surface (Life). In March 2004, NASA announced that its rover Opportunity had discovered evidence that
Mars was, in the ancient past, a wet planet. This has raised hopes that evidence of past life might be found on the planet today.
Till now, there is no clear or strong evidence for the proven of water existence on Mars.
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7. Essay on Water on Mars
Water and Life on Mars
Mars perhaps first caught public interest in the late 1870s, when Italian astronomer Giovanni Schiaparelli reported using a telescope to observe
canali, or channels, on Mars. By the turn of the century, popular songs told of sending messages between Earth and Mars by means of huge signal
mirrors. On a darker side, H.G. Wells' 1898 novel The War of the Worlds portrayed an invasion of Earth by technologically superior Martians
desperate for water. (1) In the early 1900s novelist Edgar Rice Burroughs, who is best known his creation of the jungle hero Tarzan, also entertained
young readers with tales of adventures among the exotic inhabitants of Mars, which he called Barsoo. (2)
It was hoped that Mars had ample...show more content...
Mars possesses polar caps at both poles. Frozen ice accumulates as a thin layer about one meter thick on the north cap in the northern winter only,
while the south cap has a permanent ice cover about eight meters thick. (7) The northern polar cap has a diameter of approximately 1,000 kilometers
during the northern Mars summer and contains about 1.6 million cubic kilometers of ice. The southern cap has a diameter of 350 kilometers. Both
polar caps show spiral cuts, which presently remain unexplained. Both polar caps also shrink and regrow following the temperature fluctuation of the
Martian seasons as shown in Figure 5.
In the winter months when the poles are in continuous darkness, the surface gets so cold that as much as 30% of the entire atmosphere condenses out
into thick slabs of CO2 ice or dry ice. When the poles are again exposed to sunlight the CO2 ice sublimates. This phenomenon creates enormous winds
that sweep off the poles as fast at 250 mph. These seasonal actions transport large amounts of dust and water vapor, bringing forth an Earth–like frost
and large cirrus clouds. (8) Some evidence suggests that the planet was once significantly more habitable than it is today, but whether living organisms
ever existed there is still a question open for further research and debate. The Viking probes of the mid–1970s carried experiments designed to detect
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