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U.S. and Russian Scientists Are Making Plans to Go Back to the Moon Together

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Posted in Science on 20th Jul, 2016 08:32 PM by AlexMuller

Organizations on both sides are quietly toying with the idea of going back to the moon together. That is, if politics don't get in the way. With the ISS scheduled to make a controlled plunge into the ocean in 2024, the partners have been preparing to go their own ways.

 

NASA, while funding companies like SpaceX to go to orbit, is developing the Orion spacecraft and the super-heavy rocket called Space Launch System (SLS) for manned missions into deep space and potentially as far as Mars. The European Space Agency (ESA) jumped on NASA's bandwagon few years ago, agreeing to contribute the service and propulsion module for the Orion. But the second-largest ISS contributor, Russia, has so far remained uncommitted to any joint venture beyond the station.

 
A recent economic crisis in Russia has put a dumper on the nation's space activities. But a bigger problem for cooperation in space may be the souring relationship between Moscow and Washington back on Earth. While NASA and the Russian space agency Roskosmos try to navigate the political minefield, industry engineers on both sides formed their own alliances to look into the matter from the technical prospective.
 
American aerospace companies such as Boeing and Lockheed Martin, as well as Russia's key manned space contractors RKK Energia and GKNPTs Khrunichev, pitched in on a new plan to work together. Several mission strategies have recently surfaced that focus on a multinational habitat in the vicinity of the Moon, known as cislunar space. It could serve as a platform for the exploration of our natural satellite and a springboard for missions to asteroids and even to Mars.
 
The two sides seem to understand why they need each other, and how the pieces fit together. For their part, the Russians have mastered the development and operation of space modules that can house crews and provide propulsion for years at a time. Turns out, that's exactly what the U.S. could use. Such a habitat would expand the livable volume for the Orion crews beyond the cramped one-room compartment of the ship's command module, extending the possibilities for missions.
 
In consultations with their American colleagues, Russians offered a selection of off-the-shelf or soon-to-be-available hardware for constructing the joint deep-space habitat. For example, a small docking compartment built by RKK Energia for the ISS could be easily replicated and converted into a 10-ton add-on for the hypothetical near-lunar habitat, with its own life-support system, sleeping quarters and cargo space. Each piece of an ever-growing base could be launched over a period of several years as cargo that piggybacks on SLS rocket launches. Russian engineers drafted a mini-train of such modules, which would be lined up one by one behind an unmanned space locomotive, providing propulsion and 150 kilowatts of electric power.
 
Alternatively, Russia could supply an all-in-one module for the new base that would have power, propulsion, and large living quarters for the crew. It is based on the most advanced Russian module, which is being developed as a potential cornerstone of the future Russian space station in the Earth's orbit. The drawback? A nearly 24-ton spacecraft will require a dedicated SLS rocket to boost it toward the Moon, leaving no room for the Orion or its crew on that launch.
 
Russia would get plenty out of the deal, too. Without American cooperation, has no chance of getting a rocket comparable to SLS until 2030, even under the best circumstances. Just to get to the moon, Russia devised a cumbersome scheme involving four launches of the yet-to-be-built Angara-5V rockets. If SLS works as planned, then the Americans could provide Roskosmos an easy ride to the vicinity of the Moon a decade earlier.
 
Why build a new base near the moon? Joint US-Russian teams could use remote control to drive robotic geology rovers on the surface of the Moon. The habitat could be used to study an asteroid brought into the vicinity of the Moon. Potentially, a piloted lander could be added to the mix, opening door to the human lunar landing. According to one proposal, astronauts and cosmonauts together could attempt a nearly 400-day mission on the surface of the Moon in the late 2020s to simulate a Martian expedition.
 
Yet these are only big ideas for now. The newest proposals for American and Russian cooperation were just presented at an ISS research and development conference in San Diego last week (July 12-14). Exactly where the base would go an who would take what responsibility is still up for grabs. In the aftermath of the event, William Gerstenmaier, NASA's Associate Administrator for Human Exploration and Operations, told Popular Mechanics that the agency welcomes the industry efforts, but warned that they had not been commissioned or endorsed at NASA.
 
"Until we look at them, I can't pass judgment whether they are viable or not," Gerstenmaier said. But, "it is encouraging that the industry is doing it on its own… and it is consistent with what we are thinking about, including going to cis-lunar space. … So when we, the government, decide something to do, the industry has (already) done its homework." Gerstenmaier also emphasized the potential provided by near-lunar missions for venturing much further into space, rather than exploring the Moon itself: "Don't think of it as a space station around the Moon. Think of it as the beginning of the Mars transit system."
 
When beefed up to a right level of power, life-support and propulsion, the international vehicle could leave the lunar vicinity and head to asteroids or Mars. "These modules are fairly versatile: you put power, you put right thermal system on them and you can use them in a wide variety of applications," Gerstenmaier explained. (According to the current US policy, NASA sees no need to return to the surface of the Moon, however the agency is open to cooperation if its partners, such as Roskosmos or ESA, take a lead in the lunar landing.)

Tags: moonspaceRussiaNASASpaceXSLS

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