By Debra Kamin | The New York Times
Reporting from NASA’s Marshall Space Flight Center in Huntsville, Ala., which local residents call Rocket City.
The moon is a magnet, and it is pulling us back.
Half a century ago, the astronauts of Apollo 17 spent three days on that pockmarked orb, whose gravitational pull tugs not just on our oceans but our imaginations. For 75 hours, the astronauts moonwalked in their spacesuits and rode in a lunar rover, with humanity watching on television sets 240,000 miles away. The Apollo program was shuttered after they splashed back down to the Pacific Ocean in December 1972, and since then, the moon has hung, uncharted and empty, a siren in the sky.
NASA is now plotting a return. This time around, the stay will be long-term. To make it happen, NASA is going to build houses on the moon — ones that can be used not just by astronauts but ordinary civilians as well. They believe that by 2040, Americans will have their first subdivision in space. Living on Mars isn’t far behind. Some in the scientific community say NASA’s timeline is overly ambitious, particularly before a proven success with a new lunar landing. But seven NASA scientists interviewed for this article all said that a 2040 goal for lunar structures is attainable if the agency can continue to hit their benchmarks.
The U.S. space agency will blast a 3-D printer up to the moon and then build structures, layer by additive layer, out of a specialized lunar concrete created from the rock chips, mineral fragments and dust that sits on the top layer of the moon’s cratered surface and billows in poisonous clouds whenever disturbed — a moonshot of a plan made possible through new technology and partnerships with universities and private companies.
