Why have humans not landed on Mars yet ? Why have we just sent Rovers since the last 10 years ..?

Question

Can't we at least send an animal to mars if not a human ? Like they sent a monkey to moon ?

Answer 1

Because it costs a ton of money and its a highly dangerous mission.

Answer 2

In a word, money. Which would then buy the needed technology that we still don't have to make such a flight work.



Much of the work done at the ISS is building the knowledge baseline for such long duration deep space manned flight. But, there are still major issues that would be very risky to do with a crew well beyond the Earth-Moon system.



Let's say we had a working Moonbase. Plus, of course, the needed infrastructure to go between the Earth and the Moon, as to keep such a base going, supplies would have to be sent up regularly, as they are now to the ISS, and people would be ccoming and going, again, as happens with the ISS now.



Suppose that there were a major medical issue with at least one crew member. Now, on the ISS, they'd only have to keep the person medically stable, and return them to Earth. That could be done all in less than a day. From the Moon, 3 to 4 days.



Once a manned ship is en route to Mars, no return in less than a year is possible. That means that such a ship would need far more medical capability than we've ever sent into space before.



And, that's just one aspect. How do you keep the same crew able to function without gravity for so long a trip ? Right now, 5-6 months is about the limit, and people who spend that long at the ISS need a lot of help to get around upon landing back on Earth. Yes, Mars has only one third the gravity of Earth, but a Mars crew will be WORKING there, and wearing spacesuits that likely will weigh as much as they do, so each Mars landing crewmember will have to be ready to work on Mars carrying 2/3rd, at least, of their Earth weight.



Oh, we never sent monkeys to the Moon. While one or two Soviet fly by and back spacecraft carried some turtles and the like, no one ever sent any monkeys out of Earth orbit.



And, trying to send an animal to Mars would be worse than pointless.

Answer 3

1. It costs a lot of money



2. It's very risky to send humans so we want to make sure we have the technology to get them there and back safely



3. Rovers are doing an excellent job in finding out more about Mars so we know what to expect and the best places to land



4. No-one has ever sent a monkey to the Moon

Answer 4

To launch off Earth, takes a massive rocket fueled at a space center. Imagine landing on Mars in a space capsule, loosing much of your velocity due to aerodynamic drag, coming down gently on large parachutes and then using thrusters for the final landing, you come out and plant a flag, then you wonder, where can I find a big booster rocket filled with fuel to take off from a planet on Mars...



There are a lot of issues in going to Mars and coming back alive. Problems with radiation along the way, food, oxygen and water for the nine month trip there, the two year delay for another transit window to go home and the nine months back. There's the issue of deterioration of muscle and bone mass in zero g.



We never sent a monkey to the Moon and there would be no point in sending a monkey to Mars, it would just contaminate Mars with Earth microbes making research into concepts like Martian Panspermia much more difficult and perhaps impossible.

Answer 5

Basic lack of funding and no great desire on the part of politicians.The trip to Mars isn't the hard part, it's the return trip that will be difficult to arrange. As for sending a monkey to Mars, there's no reason to do it, it wouldn't teach us anything we don't already know and we never did sent a monkey to the moon only into low Earth orbit.

Answer 6

Those monkeys that were sent to the moon ran away after they landed. The same thing might happen if the sent monkeys to Mars.

Answer 7

They/we never sent a monkey to the moon or any other animals and what would be the point of sending one to Mars with all the life support required.

The only animals (dogs or monkeys) sent into space were sent in the very early years when it was considered reasonable to check the effect of zero gravity and launch G forces on mammals.

It is much more economical and useful to have research machines that don't require oxygen, food, and water to explore.

Our government would rather spend money on wars.

Answer 8

1. They DID NOT send a monkey to the moon.

2. We don't have the Technology and MONEY to send a man to Mars.

It takes NINE months to get there. How do you survive for a trip that long??

Sure we have men on the ISS for longer than Nine months, however they can be resupplied from earth.



I would rather the money be spent on fixing the Health Care System.

Answer 9

sending a human to mars would be relatively easy. making sure they're still alive when they land is the hard bit, since the journey involves months in interplanetary space, not just three days to the moon. returning to earth again is even more difficult, nothing has ever returned from mars, not even robotic spacecraft. it just requires far too much fuel.

Answer 10

Why? It is extremely expensive and traveling in space that long the people or animals would loose a lot of muscle mass. Even though mars has less gravity, people might be too weak to do anything. There is a long list of reasons why.

Answer 11

#1-No one sent a monkey to the moon. Animals were sent into earth orbit, and eventually DIED there.



#2-Have you got the money in your back pocket? No one else does...

Answer 12

"Like they sent a monkey to moon ?"



Who are "they" and when did they send a monkey to the moon?



My research has revealed no record that any monkey has ever left earth orbit.

Answer 13

Mars ain't the kind of place to raise your kids

In fact it's cold as hell

And there's no one there to raise them if you did

Answer 14

The truth is that no human has ever traveled past the van allen radiation belts due to the high radiation level. The astronauts get sick and complained when they get about 500 mile from where the radiation belts start.

Answer 15

Being on mars would be incredibly lonely!!!!!!!!