The NASA's space ...........................

With two currently functioning orbiters, and five more missions planned in the next year, Earth's Moon may soon have seven active probes operated by five nations, with even more coming soon. NASA's plans to return humans to the Moon by 2020 are moving steadily ahead, with some concrete prototypes and initial designs beginning to emerge. Called the Constellation Program, NASA's vision involves new and upgraded launch vehicles, exploration vehicles, autonomous rovers, new spacesuits, crew and cargo vehicles, and much more. Here are seven photographs of our possible future on the Moon, and a look back, with ten images from our last visits with the Apollo missions, more than 36 years ago now.

Looking Forward -- Spacesuit engineer Dustin Gohmert drives NASA's new lunar truck prototype through the moon-like craters of Johnson Space Center's Lunar Yard. The lunar truck was built to make such off roading easy, with six wheels that can be steered independently in any direction. In addition, the steering center can turn a full 360 degree, giving the driver a good view of what's ahead, no matter which way the wheels are pointing.

Nched module of the International Space Station (ISS). The module Zarya was lifted into orbit on November 20th, 1998 by a Russian Proton rocket lifting off from Baikonur, Kazhakstan. In the decade since, 44 manned flights and 34 unmanned flights have carried further modules, solar arrays, support equipment, supplies and a total of 167 human beings from 15 countries to the ISS, and it still has a ways to go until it is done. Originally planned to be complete in 2003, the target date for completion is now 2011. Aside from time spent on construction, ISS crew members work on a good deal of research involving biology and physics in conditions of microgravity. If humans are ever to leave the Earth for extended periods, the ISS is designed to be the place where we will discover the best materials, procedures and safety measures to make it a reality.

In December 1998, the crew of Space Shuttle Mission STS-88 began construction of the International Space Station - Astronaut James Newman is seen here making final connections the U.S.-built Unity node to the Russian-built Zarya module. The crew carried a large-format IMAX camera from which this picture was taken. (NASA)

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