It is hard for most of us to tell but the US is in the early phases of a moon project.  It has adopted the same configuration of command module and lander as the Apollo program.  NASA intends to make a few exploratory missions lasting a week or so and then develop the capability for 180 day missions to the moon. This lunar “base” project is really a local rehearsal for a more ambitious manned Mars landing.  It is called the Constellation Mission. 

NASA has announced the development of two rockets for this mission- the Ares I and the Ares V.  The Ares I uses an in-line single solid rocket booster (SRB) for the first stage and a liquid propellant second stage to boost a 55,000 pound payload into low earth orbit.  Ares I is equipped with a emergency escape rocket in a tractor configuration analogous to Apollo.  As stated in the website, Ares I will be used to put the crew module in orbit for rendezvous with the ISS or cargo modules. 

The Ares V uses two SRB motors strapped to a liquid first stage engine in a fashion similar to the space shuttle. But the crew module will not be on this system.  Ares V is a cargo lifter and will carry 286,000 lbs of mass into low earth orbit.

NASA will be retiring the space shuttle system in a few years. The next man-lifter will be Ares I.  Evidently their faith in the SRB system is high.

That sucking sound heard around NASA these days is the sound of money being pulled from all over the agency and being dumped into this program. We’re going back to the moon, but with no real increase in funding.  Program managers are nervous.