Strolling on the Moon – underwater / Area Engineering & Know-how / Our Actions / ESA

Underwater lunar EVA simulation

Strolling on the Moon – underwater

17 April 2018

It’s one of many deepest ‘swimming swimming pools’ in Europe, however for 3 years has been serving to preparations for a human return to the Moon. ESA’s Impartial Buoyancy Facility on the European Astronaut Centre has been the positioning of the ‘Moondive’ examine, utilizing specifically weighted spacesuits to simulate lunar gravity, which is only one sixth that of Earth.

The three-year examine passed off within the Centre’s 10-m deep Impartial Buoyancy Facility (NBF) close to Cologne in Germany. That is one among 4 such immersion tanks worldwide – the others are in the US, China and Russia – and is used to coach astronauts for ‘further vehicular exercise’ (EVA), also referred to as spacewalks.

With Worldwide Area Station operations transferring in direction of a global lunar return within the late 2020s, ESA’s NBF has been used to research moonwalk procedures for the lunar floor.

ESA’s Impartial Buoyancy Facility at EAC

Hervé Stevenin, ESA’s Head of EVA Coaching and NBF Operations on the European Astronaut Centre (EAC), explains: “The great thing about the water immersion within the ESA-NBF is that we will simulate not solely long-duration weightlessness but in addition partial gravity, resembling on the Moon or Mars, by fine-tuning the unfavorable buoyancy of the astronauts and the entire tools they use.”

Moondive was run by a consortium led by the French firm, Comex, which specialises in human and robotic exploration of utmost environments.

“We needed to evaluate how the NBF could possibly be tailored to allow checks of EVA tools, instruments and operational ideas in simulated Moon gravity,” states Peter Weiss, Head of the Area Division at Comex.

“We centered on the strategies and expertise we might want to put together astronauts for future missions to the Moon. The thought was to give you a database of things, instruments and duties that astronauts could should deal with on missions to the Moon, not only for coaching functions but in addition for testing and validating new tools and methods of doing issues.”

The Area Functions Providers firm studied the Apollo missions from the 1960s and 1970s in addition to the necessities anticipated for future Moon exploration. The crew listed a very powerful duties and instruments as a place to begin for what they would want to do within the NBF.

“The Moondive examine has been very profitable,” provides Dr Weiss, “resulting in the primary ESA spacewalk simulation ever in partial gravity inside the NBF. We used an exoskeleton reproducing the bulkiness and motion limitation of a pressurised spacesuit, after which carried out checks of lunar floor geological sampling on the backside of the ESA water tank.”

“It’s actually wonderful to expertise for your self one thing this technology has solely seen on video photos,” says Hervé, “how the optimum strolling technique on this finely-tuned unfavorable buoyancy seems to be to kangaroo soar, similar to the Apollo astronauts did on the Moon.”

Simulated one-sixth gravity

The up to date NBF joins a variety of ESA simulators, coaching software program and hardware and EAC’s Luna Dome – at present in preparation, designed to simulate the results of lunar mud on tools and hardware – inserting Europe within the forefront of testing and coaching amenities for the human exploration of the Moon.

The Moondive mission was supported by ESA’s Fundamental Actions.

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