when would human go to mars?

Answer 1

I believe NASA plans to land man on Mars in 2020

Answer 2

I think that the general plan at this stage is for a Mars mission around the year 2020. It might happen that soon, and it might not. Costs will be extremely high and the trip will take a very long time to accomplish "round trip."

Besides the transportation of sufficient fuel, food, and atmosphere for the space ship occupants, there is the issue of a possible "Mars Lander" and "Jeep", their fuel fuel and various supplies. So if any voyage is undertaken, it will require a massive launch of huge amounts of supplies and equipment.

The primary situation is this:

The Earth orbits the Sun with a close distance of 91.4 Million Miles, and a fartherest distance of 94.5 Million Miles.

Mars orbits the Sun with a close distance of 128.4 Million Miles, and a fartherest distance of 154.8 Million Miles.

Now, somewhere along in there the ideal situation would be to have the Mars Mission arrive in the vicinity of Mars when it was closest to the Earth. That alignment only happens at certain times. So the Launch Date and Travel Time are most critical to hit with a good degree of accuracy. Failure means that the Mission Ship will fly out into space and miss Mars all together.

Were the closest alignment to occur when both planets were closest to the Sun, the distance between the two planets would be 128.4 - 91.4 = 37.0 Million Miles.
If it happened (which I doubt) that the alignment occurred when both planets were the fartherest from the Sun, the distance between the two planets would be 154.8 - 94.5 =
64.3 Million Miles. (using the information provided above).

So the trip would be on the order of maybe 43 Million Miles and the Mission ship will travel at about 30,000 Miles per hour, I estimate. To get an idea of what is happening , divide
43,000,000 by 30,000 = 3/4300 = 1433 hours at full speed
one way. That amount of time is about 60 days.

Lets assume that on Mars the Mission spends 30 days orbiting, setting up the descent, landing, exploring, re - load,
launch, recovery into main vessel and launch of main vessel
back to earth.

Add in another 90 plus days for the return flight which did not get as huge an initial boost from launch away from Earth where supplies are plentiful.

So under the most exciting possible conditions this mission might take 60 + 30 + 90 days = 180 days. That is far short of the 2 years most people are discussing for the total mission trip time. I suspect that there is a Way Station stop and various loading activities planned somewhere in there which certainly will add to the total trip time. Maybe we will see some of these preliminary trip agendas soon in releases from NASA on their web site.

Answer 3

There are no engineering solutions for cosmic and solar radiation (e.g., solar storms), sufficient consummables for the round trip... or little difficulties evidenced in submarines over six-month deployments re sexuality for a two-year Mars expedition.

No human goes to Mars and survives the round trip until the total commute is under six months AND there is a fully stocked safehouse waiting at the halfway point.

Answer 4

There are plenty of reasons to goto Mars. Many of the latest developments in both the civilian and industrial arenas, can be traced back to experiments conducted in space. Mars itself may have elements that we don't have here. Possible colonization(no global warming problems :) ). I wish that we could put aside our differences for a time, maybe for good. We could do so many things, if we weren't busy killing each other.

oops...almost forgot. Probably around 2020. :)

Answer 5

Others have given you good answers as to problems that must be overcome, but I would like to add one. It has recently been conjectured that disease may also be a major concern. Once in space, you are stuck with whatever micro-organisms were present in and on the humans when they took off. If there is a particularly nasty pathogen present, it could be fatal for everyone on board. They'd better take along a lot of antibiotics.

Answer 6

NASA hopes that they will have the capability to launch a Mars mission in the 2030s.

Answer 7

human would go to mars when human has means to get there.

Answer 8

There are priority. First we must have peace on earth. we dont need to argue real estate on Mars . we have enough problemsof our own.

Answer 9

Not being sarcastic but why bother?

High cost.
Dangerious
What is there to be gained?