Why hasn't anyone landed on mars yet?

Answer 1

there is no reason for it, we can get all the info we need by sending probes and robots there instead of us. plus it is much cheaper, you don't need to pay machines, or make room for human needs like beds, bathrooms, food, water, etc. with all the extra space needed to hold humans it creates more weight which mean more fuel. if a probe with no one on it blows up we just lost some money, but if a spaceship blows up with people we lost a lot more money and life.

Answer 2

Because it's much, MUCH harder than landing on the moon. The hardest part is, strangely, keeping the astronauts alive during a journey that will take many months (at least), in interplanetary space, where they are subject to radiation, have to grow their own food (or pack a LOT of it), and make use of a recyclable water supply. And it takes a lot of rocket fuel, or advanced fuel sources, to get there. Unfortunately, the fuels that have the greatest specific impulse (thrust per unit mass) also are the heaviest. Plutonium power has been used on some space probes, but needs a reaction mass (which still weights a lot!) and also requires a thick radiation shield. Ion engines take VERY long to reach maximum thrust, but have been tested on some probes.

Past Mars probes have been plagued with problems that suggest we'd be putting astronauts at risk, and we owe it to ourselves to be very careful. We lose a $300M probe -- no problem. We lose one human life, and the whole show comes to a screeching halt while Congress tries to find out whose fault it is.

And that's just to GET there. They also have to get back. All this on an annual budget of $18B (not sure, this was last time I checked).

A number of serious proposals have been put on the table by various groups, but the bottom line is that all of them require an Apollo like commitment of time and money, in a day and age when the public is not that interested in space, especially big, risky projects.

Answer 3

recently, i watched a program about going to mars on the science channel.

i was surprised to learn that because mars has no magnetic field surrounding it like the earth does, that the amount of radiation there is so powerful that we have not yet figured out a way to make a spacesuit strong enough so that the astronauts would not take in radiation through their feet and get cancers! gee, i never even thought of it.

it IS true that so many problems exist right here on earth that a lot of people are not very interested in our traveling into outer space anymore. and too:

we pretend as though we want to live on mars, but why would we? our earth is sooooooo splendid, having all we need on it. we need to explore our oceans as much as outer space, to learn what animals and plants exist there that may be of benefit to our people and the world in general. who knows? we may even find fuels we never knew existed that could take us to mars there!!!

Answer 4

No guy has set foot yet on mars. NASA did initiate up a software to alter that even though it became for this reason deserted simply by loss of investment. yet machines have landed on mars and are at the instant exploring the martian terrain. The automobiles on mars are often happening as Mars rover.

Answer 5

1. Because it's too expensive.
2. We would have problems keeping our astronauts alive during the extremely long and boring trip there and back (a little over 18 months there and back).
3. It's not really necessary. We can learn as much about the planet as necessary with probes and telescopes.

Answer 6

Just getting there would take around 9 months, not to mention the time spent there and then the trip back. You can imagine the expense of supplying a manned ship with food, fuel and supplies for that long.

Answer 7

difficulty. It would take a month or more to get there even if we didn't have any plans of bringing the stronauts back the supply problems are enormous.

Answer 8

because it very far, should be necessary 2 years to come in mars...........so it´s very hard someone try to go there...because it would spend much time, and nobody would like to stay so much in the space

Answer 9

our genetic ancestors
originallty came from Mars before it was knocked out of orbit and lost its atmosphere ,
why go back now ,the place has become uninhabitable

Answer 10

politics