Artemis III Landing Sites Identified Using Mapping and Algorithm Techniques

Rendition of the 13 candidate landing site regions for NASA’s Artemis III mission, with each region measuring approximately 15 by 15 kilometers (9.3 by 9.3 miles). Final landing sites within those regions measure approximately 200 meters (656 feet) across. (Credit: NASA)

Where would be the most ideal landing site for the Artemis III crew in SpaceX’s Human Landing System (HLS)? This is what a recent study submitted to Acta Astronautica hopes to address as an international team of scientists investigated plausible landing sites within the lunar south pole region, which comes after NASA selected 13 candidate landing regions in August 2022 and holds the potential to enable new methods in determining landing sites for future missions, as well.

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A Review of Humanity’s Planned Expansion Between the Earth and the Moon

Artist's impression of astronauts on the lunar surface, as part of the Artemis Program. Credit: NASA
Artist's impression of astronauts on the lunar surface, as part of the Artemis Program. Credit: NASA

Between Low Earth Orbit (LEO) and the Moon, there is a region of space measuring 384,400 km (238,855 mi) wide known as Cislunar space. In the coming decades, multiple space agencies will send missions to this region to support the development of infrastructure that will lead to a permanent human presence on the Moon. This includes orbital and surface habitats, landing pads, surface vehicles, technologies for in-situ resource utilization (ISRU), and other elements that will enable the long-term exploration and development of the lunar surface.

For all parties concerned, Cislunar space holds immense potential in terms of scientific, commercial, and military applications. The vastly increased level of activity on and around the Moon makes space domain awareness (SDA) – knowledge of all operations within a region of space – paramount. It is also necessary to ensure the continued success and utilization of the covered region. In a recent paper, a team of aerospace engineers considered the missions planned for the coming decades and evaluated the state and shortcomings of their space domain awareness.

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Chinese Researchers Devise New Strategy for Producing Water on the Moon

The strategy for in-situ water production on the Moon through the reaction between lunar regolith and endogenous hydrogen. Credit: NIMTE)

In the coming years, China and Roscosmos plan to create the International Lunar Research PStation (ILRSP), a permanent base in the Moon’s southern polar region. Construction of the base will begin with the delivery of the first surface elements by 2030 and is expected to last until about 2040. This base will rival NASA’s Artemis Program, which will include the creation of the Lunar Gateway in orbit around the Moon and the various surface elements that make up the Artemis Base Camp. In addition to the cost of building these facilities, there are many considerable challenges that need to be addressed first.

Crews operating on the lunar surface for extended periods will require regular shipments of supplies. Unlike the International Space Station, which can be resupplied in a matter of hours, sending resupply spacecraft to the Moon will take about three days. As a result, NASA, China, and other space agencies are developing methods to harvest resources directly from the lunar environment – a process known as In-Situ Resource Utilization (ISRU). In a recent paper, a research team with the Chinese Academy of Sciences (CAS) announced a new method for producing massive amounts of water through a reaction between lunar regolith and endogenous hydrogen.

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Dune-Inspired Stillsuits Could Allow Astronauts to Recycle Their Urine Into Water

A Fremen from Dune wearing a stillsuit. Credit: DALL-E generated image

If history has taught us one thing, it is that science fiction often gives way to science fact. Consider the Star Trek communicator and the rise of flip phones in the late 1990s and early 2000s, or how 2001: A Space Odyssey predicted orbiting space stations and reusable space planes – like the International Space Station (ISS) and the Space Shuttle. And who can forget Jules Verne’s classic, From the Earth to the Moon, and how it anticipated that humans would one day walk on the Moon? Almost a century later, this dream would be realized with the Apollo Program.

The latest comes from Cornell University, where a team of researchers has developed a novel in-suit urine collection and filtration system inspired by the suits the Fremen wore in Frank Herbert’s Dune. Once integrated into NASA’s standard spacesuit—the Extravehicular Mobility Unit (EMU)—this system has the potential to provide astronauts with additional water while reducing the risk of hygiene-related medical events. In short, the stillsuit technology has the potential to enable longer-duration missions on the surface of the Moon, Mars, and orbit.

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NASA's Skyrocketing Need for Cargo Deliveries to the Moon

Artist's impression of astronauts on the lunar surface, as part of the Artemis Program. Credit: NASA
Artist's impression of astronauts on the lunar surface, as part of the Artemis Program. Credit: NASA

NASA has big plans for the Moon. Through the Artemis Program, NASA plans to create a program of “sustained exploration and lunar development.” This will include the creation of the Lunar Gateway, an orbital habitat that will facilitate missions to and from the surface, and the Artemis Base Camp that will allow for extended stays. Through its Commercial Lunar Payload Services (CLPS) program, NASA has contracted with commercial partners like SpaceX and Blue Origin to deliver scientific experiments and crew to the lunar surface.

However, these efforts are expected to culminate in the creation of a permanent outpost and human presence on the Moon. This will require far more in the way of crew and payload services to ensure crews can be sustained in the long run. In a recent white paper, “Lunar Surface Cargo,” NASA researchers identified a significant gap between current cargo delivery capabilities and future demand. The paper indicates that this growing cargo demand can only be met by creating a “mixed cargo lander fleet.”

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Do Protons Decay? The Answer Might be on the Moon

Model of proton decay. (Credit: Wikipedia/Cjean42; Creative Commons Attribution-Share Alike 3.0 Unported license.)

Does proton decay exist and how do we search for it? This is what a recently submitted study hopes to address as a team of international researchers investigate a concept of using samples from the Moon to search for evidence of proton decay, which remains a hypothetical type of particle decay that has yet to be observed and continues to elude particle physicists. This study holds the potential to help solve one of the longstanding mysteries in all of physics, as it could enable new studies into deep-level and the laws of nature, overall.

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NASA Wants Heavy Cargo Landers for the Moon

Early conceptual renderings of cargo variants of human lunar landing systems from Blue Origin.
Early conceptual renderings of cargo variants of human lunar landing systems from Blue Origin.

The Artemis Program represents NASA’s effort to return to the Moon. One of the goals of the project is to set up long-term exploration of the Earth’s only natural satellite. This will need much bulkier equipment than what the Apollo astronauts carried though, and this equipment needs to be transported to the Moon’s surface. Blue Origin and SpaceX, contracted by NASA to provide human landing systems, have begun developing vehicles that can safely deliver this equipment from space to the Moon’s surface.

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Highlights from the 10th Achieving Mars Workshop

The Tenth Community Workshop for Achievability and Sustainability of Human Exploration of Mars. Credit: Explore Mars Inc.

Back in December, NASA officials, space industry experts, members of the academic community, and science communicators descended on Washington, D.C., for the Achieving Mars Workshop X (AM X). This workshop is hosted by Explore Mars Inc., a non-profit organization dedicated to bringing leading experts from disparate fields together to contribute to creating the first crewed missions to Mars. On May 17th, the results of this year’s workshop were summarized in a report titled “The Tenth Community Workshop for Achievability and Sustainability of Human Exploration of Mars.”

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Start Your Engines: NASA Picks 3 Teams to Work on Lunar Terrain Vehicle

Illustration: NASA's Lunar Terrain Vehicle concept
An artist's conception shows NASA's generic concept for the Lunar Terrain Vehicle. (NASA Illustration)

Some of the biggest names in aerospace — and the automotive industry — will play roles in putting NASA astronauts in the driver’s seat for roving around on the moon.

The space agency today selected three teams to develop the capabilities for a lunar terrain vehicle, or LTV, which astronauts could use during Artemis missions to the moon starting with Artemis 5. That mission is currently scheduled for 2029, three years after the projected date for Artemis’ first crewed lunar landing.

The teams’ leading companies may not yet be household names outside the space community: Intuitive Machines, Lunar Outpost and Venturi Astrolab. But each of those ventures has more established companies as their teammates.

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China's Relay Satellite is in Lunar Orbit

Animation of Queqiao-2 satellite establishing orbit around the Moon. Credit: CGTN

On March 20th, China’s Queqiao-2 (“Magpie Bridge-2”) satellite launched from the Wenchang Space Launch Site LC-2 on the island of Hainan (in southern China) atop a Long March-8 Y3 carrier rocket. This mission is the second in a series of communications relay and radio astronomy satellites designed to support the fourth phase of the Chinese Lunar Exploration Program (Chang’e). On March 24th, after 119 hours in transit, the satellite reached the Moon and began a perilune braking maneuver at a distance of 440 km (~270 mi) from the lunar surface.

The maneuver lasted 19 minutes, after which the satellite entered lunar orbit, where it will soon relay communications from missions on the far side of the Moon around the South Pole region. This includes the Chang’e-4 lander and rover and will extend to the Chang’e-6 sample-return mission, which is scheduled to launch in May. It will also assist Chang’e-7 and -8 (scheduled for 2026 and 2028, respectively), consisting of an orbiter, rover, and lander mission, and a platform that will test technologies necessary for the construction of the International Lunar Research Station (ILRS).

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