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The #Artemis ESPRIT Gateway module for communications, refuelling and observation is to be built by @Thales_Alenia_S in #France 
. #ExploreFarther https://www.esa.int/ESA_Multimedia/Images/2020/10/What_is_Esprit …pic.twitter.com/zhwurIct2w
The Gateway will fly in a unique "angelic halo orbit" developed together with @esaoperations. Every seven days the Gateway will pass 3000 km from the lunar surface and at its furthest, 70 000 km. https://www.esa.int/Enabling_Support/Operations/Angelic_halo_orbit_chosen_for_humankind_s_first_lunar_outpost …pic.twitter.com/ywSa6L0kJM
How will astronauts visit the lunar Gateway? Using @NASA_Orion powered by the European Service Module, shown here during docking 
The first three spacecraft are in production: https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Orion/Third_European_service_module_for_Orion_to_ferry_astronauts_on_Moon_landing … #Artemis #ForwardtoTheMoonpic.twitter.com/5niOirAsXE
Of course today's Memorandum of Understanding was many years in the making, here a diver is testing concepts for a lunar Gateway airlock for @AirbusSpace in France: https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Floating_ideas_for_an_airlock_near_the_Moon …pic.twitter.com/4ChTT09Pt9
The Gateway will be a platform for science as well as for astronauts. ERSA is @esa's first scientific instrument for #Artemis, it will monitor radiation in lunar orbit: https://blogs.esa.int/exploration/artemis-introducing-ersa-european-experiment-to-monitor-radiation-in-deep-space/ …pic.twitter.com/6ixZmRCmOV
The #Artemis Gateway Memorandum of Understanding was signed remotely by @janwoerner of @esa
and @JimBridenstine of @NASA, #ForwardToTheMoon! https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Positive_signs_for_Europe_as_ESA_goes_forward_to_the_Moon …pic.twitter.com/OFj0cq21Hx
The orbital characteristics are fascinating. Plenty of opportunity for young engineers in ESA too.
OH come on people, stop with the weird names.
https://en.wikipedia.org/wiki/Molniya_orbit … Spy satellites use similar. Good ‘ol Kepler!
Why 70,000 km is there a reason they are not closer to the Moon at apogee?
How long will it work?
!?
Base on the Moon .... then on Mars ....
Passenger transportation reason. ... and freight ... research?
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A memorandum of understanding signed between 
