Why are we still looking at Mars?

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In summary: The surface environment is hostile:the low atmospheric pressure, high solar radiation, and powerful radiation from the sun's ultraviolet (UV) and X-ray radiation make life difficult or impossible.3)The surface environment is unfriendly to life as we know it:low atmospheric pressure, water scarcity, and high levels of radiation would kill any form of life that evolved on the planet.4)The geological evidence indicates that the environment has not changed for billions of years:No rivers, lakes, or oceans have been found on the surface of Mars, ruling out the possibility that life could exist there now or in the past.In summary, the reasons for continuing to research Mars are to gain a better
  • #1
Snazzy
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Haven't we been looking at this dead world for three decades now? There are geysers on one of Saturn's smaller moons, hydrocarbon lakes on Titan, and a potential ocean under Europa's ice. Are there any good reasons why space agencies are still wasting their time with Mars instead of venturing out into the outer solar system where there might be (a higher chance of) life right now, as we speak?
 
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  • #2
Why are we still studying the Earth? There is a lot to learn and we don't know everything there is to know.

The odds of finding life on Mars are not yet zero, so it is still studied. And it is easier to send a probe to Mars than to Saturn.
 
  • #3
Mars is also so much closer and easier to study. It also holds the potential as a base of operations and maybe even terraforming for a second planet colonized by man. The practice and technology developed for Mars is seriously important for longer range missions. The moon and nearer planets are important in the long run as jumping points to get to farther bodies such as Saturn's moons. Mars might, as yet, yield some type of life. There is at least some tenuous reasons to hold out this hope.

Life may be one of the more important things to discover but at this time the development of technology and funding are more important. Develop those and we find the life if it's there. A thousand years from now I doubt that finding life on Titan will be thought of as the most important consequence of developing space travel.
 
  • #4
We've seen a lot of things happening on Mars lately that we hadn't noticed before, which raises the question, what else have we overlooked?
 
  • #5
Aren't we also looking at Mars with ever better resolution (e.g. "Face On Mars" from 1970's photographs turned out to be just a mesa...in early 2000's photographs)?

Not to mention we never had rovers there before that could last years and continue to travel around exploring.
 
  • #6
Snazzy said:
Are there any good reasons why space agencies are still wasting their time with Mars instead of venturing out into the outer solar system where there might be (a higher chance of) life right now, as we speak?

The paramount goal of space agencies isn't to seek out life... Debatable if it should be or not, but it currently is not. So even though I agree Mars is no longer the most likely site for life, it still holds a lot of importance in the study of planetary evolution, among dozens of other fields. Heck, people are talking about going back to the moon.
 
  • #7
Besides, we still haven't been able to answer the question of life on Mars with any certainty. If we can't come up with a definite "yes" or "no" on Mars, then we aren't ready to start looking at places like Io, where the search will be much more difficult and the results probably much harder to interpret. As we continue the search for life (past or present) on Mars, we are learning how to search. uropa is a long ways away, and it would be nice to know a bit more about what we should do there before we try it.
 
  • #8
Mars may have a lot more in common with Earth than many people think. It may have once been a planet just like Earth, complete with liquid oceans on its surface. So studying what happened to Mars could be imperative in finding out what might happen to Earth. And since Earth is the only place humans currently have to live, that is very important.
 
  • #9
jjack said:
We've seen a lot of things happening on Mars lately that we hadn't noticed before, which raises the question, what else have we overlooked?

Just came across this while doing some reading. I'm surprised it didn't receive more attention (mainstream media).


HiRISE Captures Stunning Images of Mars Avalanches in Action
Magnificent images of avalanches of ice and rock in the northern polar regions of Mars have been captured by NASA Mars Reconnaissance Orbiter's (MRO) High Resolution Imaging Science Experiment (HiRISE). These images are not of landslides that have happened in the past, they are actual Mars avalanches happening at the moment of observation. This rare event will be of tremendous value to Mars scientists currently analysing the effects of seasons on the landscape and will provide information on the geological activity of the planet…
http://www.universetoday.com/2008/0...stunning-images-of-mars-avalanches-in-action/
 
  • #10
Uninhabitable Mars.So what's the point of researching if life is not possible?

There are several points to prove that Mars is uninhabitable though Mars has always held a certain fascination for humans :-

1)The lack of a magnetosphereand extremely thin atmosphere of Mars are a great challenge:the planet has little heat transfer across its surface, poor insulation against bombardment and the solar wind, and insufficient atmospheric pressure to retain water in a liquid form (water instead sublimates to gaseous state)

2)Atmospheres of Earth and Mars are radically different. In fact, if any humans set foot on the red planet, they would not be able to breathe.

3)Martian atmosphere is composed almost entirely of carbon-di-oxide(CO2), which when inhaled in large,concentrated amounts, is deadly.On Mars, the atmospheric CO2 levelis more than 95 percent, whereas on Earth it is less than 1 percent.

4)The remaining gases in the Martian atmosphere include small percentages of Nitrogen and Argon and mere traces of Oxygen and water vapour.

5)Mars has the largest dust storms in the Solar System.These can vary from a storm over a small area, to gigantic storms that cover the entire planet. They tend to occur when Mars is closest to the Sun, and have been shown to increase the global temperature.

These reasons make it utterly impossible to inhabit Mars. So what's the point of researching and investigating the Red Planet?
 

What is the purpose of continuing to explore Mars?

The main purpose of continuing to explore Mars is to gain a better understanding of the planet and its geological history. This can help us learn more about the potential for past or present life on Mars, as well as provide information for future human missions to the planet.

What have we learned from previous missions to Mars?

Previous missions to Mars have taught us a lot about the planet's surface, atmosphere, and history. We have discovered evidence of ancient water on the planet, as well as evidence of past geological activity. We have also learned more about the composition and structure of the Martian surface.

Why is Mars considered a potential destination for future human missions?

Mars is considered a potential destination for future human missions because it is the most Earth-like planet in our solar system. It has a similar day length and seasonal cycles, as well as evidence of past water and potential for habitable environments. It is also close enough to Earth to make long-term missions feasible.

What are the current goals of Mars exploration?

The current goals of Mars exploration are to continue studying the planet's geology and atmosphere, search for evidence of past or present life, and prepare for future human missions. This includes sending more robotic missions to the planet, as well as conducting research from Earth.

How will continued exploration of Mars benefit us?

Continued exploration of Mars can benefit us in many ways. It can help us understand more about our own planet and its history, as well as provide insights into the potential for life on other planets. It can also advance our technology and knowledge, and inspire future generations to pursue careers in science and space exploration.

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