to get living on it

yes,possible for a manned mission to Mars by 2023

Nobody knows when the first MANNED mission to Mars will take off. It may

never happen. Several unmanned explorers have already reached Mars.

As of March 2011, there is no project in progress, no funding, no budget, no plan,

and no schedule for a manned mission to Mars.

There are currently no manned missions planned to Mars.

The main difference is that a manned Mars mission is a great deal longer.