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Raumfahrt - Startvorbereitung von NASA Artemis 3-Update-2

1.04.2024

Space Lab® LEAF Experiment Selected for Artemis III Lunar Mission

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LEAF β Payload Concept
Space Lab® announced that the company has been selected to develop LEAF, a plant science experiment for NASA’s Artemis III Lunar mission. Artemis III will bring humans to the surface of the moon for the first time in this century. The Artemis III Deployed Instruments (A3DI) call solicited instrument suites to conduct high-priority science investigations that can be uniquely accomplished by human deployment of payloads on the surface of the Moon.  LEAF, which stands for Lunar Effects on Agricultural Flora, will study how the Lunar environment affects the germination and growth of plants that may be used to feed astronauts of the future. Human nutrition and life support (carbon dioxide removal, oxygen production, and water purification) provided by space agriculture will enable long-duration human exploration of the moon and beyond. Plant biology research on the Lunar surface is needed to understand the effects of partial gravity and space radiation on crop physiology and to demonstrate the potential for sustained, off-planet propagation.
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The LEAF β (“LEAF Beta”) payload will protect plants within from excessive Lunar sunlight, radiation, and the vacuum of space, while observing their photosynthesis, growth, and responses to stress. The experiment includes a plant growth chamber with an isolated atmosphere, housing red and green varieties of Brassica rapa (Wisconsin Fast Plants®), Wolffia (duckweed), and Arabidopsis thaliana. By bringing seedling samples back to Earth, as part of Artemis III, the research team will apply advanced system biology tools to study physiological responses at a molecular level. Only one other payload has studied plants on the moon; the 2019 Chinese Chang’e 4 mission provided a picture of a 4-day old cotton sprout then suffered thermal control failure. The Lunar Effects on Agricultural Flora (LEAF) research will provide the first, comprehensive assessment of organism-wide effects of the Lunar environment, reducing risks for sustainable off-planet crop production and bioregenerative life support. Space Lab Vice President, Christine Escobar, stated “This research will be a pivotal step toward understanding how we might use agriculture in space to support human crew, paving the way for sustained Lunar exploration and even missions to Mars.”  ​

The LEAF team includes Principal Investigator Christine Escobar, Space Lab CEO Adam Escobar, Space Lab Mechanical Engineer Madison Jones, and space biologists from NASA Kennedy Space Center (Dr. Aubrie O’Rourke, Dr. Gioia Massa, and Dr. Raymond Wheeler), University of Colorado at Boulder (Dr. Barbara Demmig-Adams), Purdue University (Dr. Marshall Porterfield), USDA (Dr. Gayle Volk), La Trobe University (Dr. Mathew Lewsey), and University of Adelaide (Dr. Jenny Mortimer). Space Lab is a small business in Boulder, CO, that researches and develops technology for Earth-independent space habitation and exploration.  Escobar stated, “We create tools and resources that people need to live and work in space sustainably, so that they can explore further and stay longer. We consider ourselves space habitat outfitters, developing sustainable solutions for humanity’s greatest journey.”
Quelle: Space Lab Technologies, LLC
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Update: 11.06.2024
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Astronauts test SpaceX Starship hardware and spacesuits for Artemis 3 moon mission

The test "confirmed that the amount of space available in the airlock, on the deck, and in the elevator, are sufficient for the work our astronauts plan to do."

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Axiom Space astronaut and director of human spaceflight Peggy Whitson (L) and NASA astronaut Douglas Wheelock wear pressure garments to remove heat and provide protection underneath their Axiom Space-designed spacesuits during a test on April 30, 2024 at SpaceX headquarters in Hawthorne, California.(Image credit: SpaceX)

Come 2026, NASA plans to land humans on the moon for the first time since 1972. Times have changed, as can be gauged from the new rockets, spacecraft and spacesuits. 

To prepare for the Artemis 3 moon-landing mission, in late April two astronauts donned Axiom Space's new spacesuits and for the first time tested out a mock version of the vehicle that will get them to the moon.

Scientists and engineers say the test — the first of its kind since the Apollo era — provided feedback on how well the spacesuits, being built by Axiom, worked with a test version of SpaceX's Starship Human Landing System (HLS), NASA's vehicle of choice to ferry astronauts to and from the moon during the Artemis 3 mission. They were able to gauge the layout of the HLS, including its layout, physical design and clearances, according to a NASA statement.

The three-hour test, which was carried out at SpaceX's headquarters in Hawthorne, California, was also useful to judge the flexibility of the spacesuits, and the ease of getting in and out of them before stowing them in the airlock with minimal assistance. 

Two astronauts, Axiom Space's Peggy Whitson and NASA's Doug Wheelock, donned spacesuits in a full-scale mockup of the airlock that is perched on Starship's airlock deck. Each spacesuit also included a full-scale "backpack" model of the portable life support system, according to a statement by Axiom.

During the test, the astronauts interacted with a control panel in the airlock to ensure the controls were within reach and could be activated while wearing gloves, NASA said. They also practiced using a test elevator, which will take astronauts and their equipment from the Starship deck to the moon's surface for moonwalks during Artemis program missions.

"Overall, I was pleased with the astronauts' operation of the control panel and with their ability to perform the difficult tasks they will have to do before stepping onto the moon," Logan Kennedy, the lead for surface activities in NASA's HLS Program, said in the NASA statement. "The test also confirmed that the amount of space available in the airlock, on the deck, and in the elevator, are sufficient for the work our astronauts plan to do."

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Astronauts Wheelock and Whitson tested the agility of the spacesuits by conducting movements and tasks similar to those necessary during lunar surface exploration on Artemis missions, such as operating Starship's elevator gate. (Image credit: SpaceX)

In March last year, NASA and Axiom revealed a prototype of the spacesuit, the Axiom Extravehicular Mobility Unit (AxEMU), which is being designed to be worn by astronauts both in-flight and on the moon. The company is beyond the preliminary design review point with NASA and will enter a critical design review phase later this year, Axiom said in its statement.

"Integrated tests like this one, with key programs and partners working together, are crucial to ensure systems operate smoothly and are safe and effective for astronauts before they take the next steps on the Moon," Amit Kshatriya, NASA's Moon to Mars program manager, said in the NASA statement.

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Wheelock and Whitson conducting mission-like maneuvers in the full-scale build of the Starship human landing system's airlock. (Image credit: SpaceX)

In April, Axiom tested one of the unoccupied spacesuits in NASA's Neutral Buoyancy Laboratory, for which the company added weights to the suit to mimic the lunar environment, where gravity is just a sixth of Earth's. Soon, an astronaut will don the suit for the first test run in the water, the company said in its latest statement.

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An unoccupied Axiom Space spacesuit in NASA's Neutral Buoyancy Laboratory. (Image credit: Axiom Space via X)

Meanwhile the astronauts' ride to the moon, Starship, is being developed by SpaceX to be fully reusable to aid economically feasible trips to the moon and eventually Mars. On Friday (June 7), the company moved closer to that goal with a successful fourth test flight that ended in smooth water landings for both the vehicle's Super Heavy booster and Starship itself.

Humanity's return to the moon, however, is now expected to occur no sooner than September 2026, after NASA delayed its touchdown plans from the originally targeted landing in late 2025. Issues with the Orion spacecraft's heatshield, life support systems and an electrical system in the crew abort system have contributed to the delays.

"As we prepare to send our friends and colleagues on this mission, we're committed to launching as safely as possible," Jim Free, NASA's associate administrator, had told reporters during a media teleconference in January. "And we will launch, when we're ready."

Quelle: SC

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Update: 23.08.2024

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Europe delivers for Artemis III

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The European Service Module that will power the Orion spacecraft during the Artemis III mission to the Moon is soon on its way to the United States.

ESA is delivering its third European Service Module to NASA as part of its key contributions to humankind’s return to the Moon.

 

The service module has left the integration halls of Airbus Space in Bremen, Germany and will now sail to NASA’s Kennedy Space Center in the United States.

Canopée in the Garonne
Canopée in the Garonne

Built in Italy, assembled in Germany, and with contributions from all over Europe, the module’s journey across the Atlantic Ocean will take 12 days on board the Canopée, the same ship that transported Ariane 6 to Europe’s spaceport in French Guiana ahead of its inaugural flight.

ESA’s European Service Module

The European Service Module propels NASA’s Orion crew vehicle in space during Artemis missions and provides astronauts with essential resources including electricity, water, temperature control and air.

European Service Module-1 in flight
European Service Module-1 in flight

ESA has already provided two European Service Modules for NASA: the first was used during the successful Artemis I uncrewed mission, and the second is currently at NASA’s Kennedy Space Center for testing in the lead up to the Artemis II mission scheduled next year.

Now, the third European Service Module is on its way to join the second ahead of its own mission.

The road so far

The third European Service Module began its journey in the manufacturing halls of Thales Alenia Space in Turin, Italy, where engineers built its chassis-like structure.

Third European Service Module structure
Third European Service Module structure

This backbone supports all components of the module including: 11 km of wiring, 33 engines, four tanks with 2000 litres of propellant each, tanks with enough water and air for the crew during their mission and four seven-metre solar arrays providing enough electricity for two households.

From October 2020, the module and its components arrived to Airbus Space in Bremen, Germany, for assembly. The parts came from over 20 companies across more than 10 European countries, a testament to the cooperative effort behind this project.

Third European Service Module leaves integration hall
Third European Service Module leaves integration hall

Earlier this year, teams installed the third European Service Module’s main engineThis engine has already nine missions under its belt, powering the Space Shuttle orbiters Challenger, Columbia and Endeavour.

The module will soon leave Europe on its way to the United States.

Next steps

European art for Artemis III
European art for Artemis III

Once the European Service Module arrives at NASA’s Kennedy Space Center, engineers will connect it to the Crew Module Adapter and later to the Crew Module itself, with plenty of testing before, in between and after to get the spacecraft ready ahead of the Artemis III mission.

Quelle: ESA

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Update: 4.09.2024

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Artemis 3 astronauts will walk on the moon with 4G-equipped spacesuits

 

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