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Why all the focus on mars?

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Should we be much more focused on exploring other worlds
  Yeah, there's so much more out there we could find
  No, Mars is much more important than the other planets
  Well, we could at least pay a little more attention to the other planets.
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Screaming Wombat

PostPosted: Thu Mar 23, 2006 4:42 pm


Mars is neat and all, being close to the earth and also a lot like earth, but it seems like we focus on it too much.

I understand the need for preparing a mission to mars with humans aboard, but why all the focus on the possibility of life on the barren planet. There are plans of sending a rover to mars whenever we could build some probes designed to look for life in other places.

http://www.space.com/searchforlife/060323_seti_biomes.html

a total of 8 worlds that could possibly support life, the only ones we've really explored are Earth and Mars.

Even venus is on the list, some hardy acidophiles could easily survive underground just like how our possible microbes on mars could survive.

Better yet, let's not dig, let's just take a drip to Enceledus or maybe Titan, where the trip to find microbes wouldn't be so hard, if we could put a rover on Titan no doubt we'd find a gigantic wealth of information even if the planet is dead.

We've only visited the surface of the Moon, Mars, and a very brief visit to Venus and Titan that don't really count. If we could be less focused on sending more and more rovers on mars just think of all the crazy things we could discover.

Yeah, I just wanted to show you this interesting link and also see what some of the members thought of the excess of focus (or lack of) directed towards mars.

EDIT: and what's this, pluto harboring life?

Not now, but in the far away future when the sun becomes a Red Giant and starts to eat whatever's in the inner solar system, including earth, pluto will be positioned so that temperatures on the ice cold world would be particularly warm, to the point where the temperature on the planet could very well be earthlike.

At least, that's what the computer models say.

During this period in the sun's evolution less UV rays are produced which means the need for an atmosphere is less important, but still necessary. It's believed that Pluto could harbor a thin atmosphere.

Of course we don't know if it really will harbor life, we just know that it can.

Who knows, in the far away future pluto may just be a miniature earth with little aliens walking about. We might even join them if we're alive and decide that earth's just a little bit too toasty.
PostPosted: Thu Mar 23, 2006 5:31 pm


I agree that we are paying too much attention on mars but if you think about it it took like what 7 months just for the probe to reach it or something like that. Voyager 2 took like 12 years to reach neptune right? well ya wahtever mars is just getting its 15 min of fame. It will soon be over once we find out if there was life on there or not. The other planets are way farther so there might be probes trying to reach other planets but its still not close enough to put on the news and stuff. Venus probably is a lot harder to land on because of its thick atomosphere and gravity. if we sent a probe there it might like explode or something. Well thats my theory but then again i dont know much about it. And about that pluto thing.....ya sorry got no clue what you're talking about. smile I just hope i'm dead if that does happen then i wont get eatten by the sun and whatever you said.

cocoONneptune


Screaming Wombat

PostPosted: Thu Mar 23, 2006 6:34 pm


the pluto thing?

Just look at it this way...

The sun will eventually turn into a red giant and then go nova in a few billion years, when it does turn into a red giant it will become much bigger, big enough to engulf the orbits of the inner solar system planets.

Funny thing is pluto is so far away that when the sun finally does turn into a red giant it will be situated far enough from the sun so that it doesn't get burned.

In fact, it may very well be like a miniature earth in terms of temperature.

See what I'm saying?

And the probes, unfortunately the only planet monitoring probe that hasn't reached it's destination yet is New Horizons, there's also the Cassini probe but it's already done it's duty and is just hanging around trying to see if it can't peer a little further into Titan's atmosphere.
PostPosted: Tue Apr 04, 2006 4:13 pm


Well I can understand why there is so much attention for Mars. The fact that Mars once has water, and may still have water deep under the surface is the main driving forse that keeps us sending probes there.
I agree though that there should be some more attention for some of the other worlds out there. THen again if you look more in the science news there is. THere have been lots of plans to send probs to other worlds. ... But then with Bush's new decision to put people on the moon, all these plans have been put on hold. No new probes are going up there for a while. stare THe media also has a big effect in that it only really shows the mars stuff not all the other neat stuff that's going on.

hmmm... I never heard that about Pluto, but it sounds about right. I'm going to look into that. I'm interested now...


AstronomyGirl

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Screaming Wombat

PostPosted: Tue Apr 04, 2006 8:00 pm


Yeah, that another thing, the damn media.

They hardly pay any mind to the nation or the world's astronomy related activities, all people care about are politics and disasters, which is understandable, then they tune in to see how everyone's favorite celeb is doing some monotenous task.

Another thing that bothers me about Mars is how so many probes seem to be struck down by the atmosphere before they send any pictures.

Now just think for a second, if we applied some of the technology being used on Mars, the advanced cameras and rovers, and use it on other planets. What a wealth of information we'd gain.

It'd be really neat to give a more in dept look at Venus, luckily there's that MESSENGER probe that's being planed by ESA. It's the fact that Venus is exactly like Earth except for the fact that some event in it's history caused it to develop a much thicker atmosphere that choked anything on the surface. I often come up with the rather humerous idea of finding the ruins of an alien city on Venus that parallels our own give or take a few decades of achievement, a city fueled by fossil-fuels which caused runaway greenhouse to bake the planet.

But that's just silly.
PostPosted: Thu Apr 06, 2006 3:54 pm


Yes it would be nice to drop probes down onto other planets, but for a lot of other planets that's just not possible.

To bring up Veuns which you mentioned Secret Penguin Man, it's really really difficult to get probes on the surface. Because of it's atmosphere it's like 700 degress Kelvin on the surface!!! Years ago the russians sent probes to the surface of Venus. They only lasted a few minutes at most, just long enought to take a few pictures and send them back, before the melted. We dont' yet have good enough technology to send a probe that would survive on the surface of Venus. There was also another probe, can't remember the name, that went in the atmosphere of Venus. That gave us some useful info as well, but then probes can't last long in atmospheres without eventually falling to the ground. So, as of right now we can't really send much to Venus.
Mercury, well part of it is that there just hasn't been much of an interest in it. There is a probe on the way to merc now though. Just to orbit though. Also on Mercury though there are really drastic temperature diffrences from day to night, so a probe probably couldn't survive that on the surface.
As for the gas/ice giants. Well Jupiter has had a probe droped down into it's atmosphere. Can't really land on and explore the gas giants though since there really isn't a surface though. The best for those is what is going on with Saturn right now. Cassi is orbiting Saturn and it's moons and sending back lots of data to us.
And then as for Pluto, well it's just too far away, and except for New Horizons which is on it's way there now, we haven't send any probes there yet, so until we know more about pluto there isn't going to be a rover on it any time soon.

So, what I'm trying to get at is yes it would be really cool if we could adapt the Mars rover technology so that we coudl land rovers on other planets, but then it's not very practical. Mars is the only place where landing a probe will get us more information that we are looking for.


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Screaming Wombat

PostPosted: Fri Apr 07, 2006 5:00 am


What do you mean by probes not surviving long in the atmosphere due to gravity. The earth's atmosphere extends 600 miles above the surface, plenty of satelites exist there.

Really neat, eh? Even though space is technically only about 60 miles above earth the atmosphere extends much further away.

As for Venus, it's not 700 Degrees Kelvin, it's 700 degrees Fahrenheit, which is still hot.

But, after I did a little search on Venus to learn more about I came up with some interesting information. The temperature in the clouds is only -50 degrees Fahrenheit, making life in it's clouds very much possible, especially after we found carbonyl sulfide in it's clouds, which is usually a sign of life.

Luckily the ESA are sending a probe to the planet to get a better picture of the planet, maybe then we can learn more about our sister planet.

As for the other planets, mercury isn't a big concern, but we could still go there if we wanted to. I didn't mean we should actually explore the gas giants by sending a probe right into their atmosphere, even though that would be an interesting thought. There have been some interesting theories of giant floating creatures the size of Iceland living on Jupiter, but exploring a gas giant would mean a kamikaze mission straight into it and allow it to get crushed by all the pressure. We should still explore the moons to see what we could find on there, as we've learned from Cassini there's so much to learn on these moons.

On Triton, in orbit around Neptune, the moon has plenty of water, but it's so cold that life could never live there. But we could still send a probe there to see what interesting secrets we could gather from the moons.
PostPosted: Sat Apr 08, 2006 4:26 pm


Yes we have satelites in our own atmosphere, but for any satellite or probe as it's going along there is friction with the atmosphere, and that gradually slows it down. All the satellites in our own atmosphere will eventually come down someday. Probes in other atmospheres do the same things. The thicker the atmosphere the sooner it falls because of more friction.

Yea I agree, we should send more probes to the gas giant moons. We don't really know all that much about them.


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Screaming Wombat

PostPosted: Sat Apr 08, 2006 4:49 pm


That's why we should scout the moons, we know so little about them, there's so much we could find on the tiny little moons.

Mars has an atmosphere as well, one that has downed plenty of probes so far, ESA's beagle wasn't the only probe to fall.

We've spent so much money on mars, a lot of that money is pretty much wasted should a probe fail to tackle mars' atmosphere, maybe it's time to diversify our space program.

Once we can that is, right now congress isn't being cooperative. At least NASA was able to ressurect the Dawn probe, no we can scout the Trojan asteroids near jupiter.
PostPosted: Thu Jun 01, 2006 4:20 pm


Probably looking for water. After all, ours is depleating.

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Screaming Wombat

PostPosted: Fri Jun 02, 2006 11:46 am


ChibiSnakePriestess
Probably looking for water. After all, ours is depleating.
depleting?

No, we have a fixed amount of water, it's just that we have more people to deal with nowadays. There's also the fact that with rising temperatures the water is less reluctant to form a liquid when it could simply remain in the sky as vapor.
PostPosted: Tue Jun 06, 2006 6:12 pm


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iceack


Screaming Wombat

PostPosted: Tue Jun 06, 2006 6:32 pm


Ah, now that's another thing.

You see, mars is an incredibly tricky planet to monitor through probes, most of the satellites and probes we've sent there have crashed due to the weak atmosphere messing with them while they try to enter orbit.

With NASA's funding being cut, it seems risky to send another probe their just to be shot down by the "Martian Vampire" a nickname for the phenomena that has downed so many probes.

It saddens me how NASA has cancelled such important missions such as the Terrestrial Planet Finder, yet there might be hope if we shifted some of the work on a few Mars projects towards these unfortunate programs.

The Dawn mission barely made it out without getting cancelled itself, luckily it managed to avoid the chopping board.
PostPosted: Sat May 30, 2009 11:08 am


I agree that we should explore more the other planets and moons, but Mars is the next logical step for a manned mission after the Moon. So it would be good to know more about the planet's surface, climate, etc. before we send humans there.

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