Moon Monday #156: On NASA getting access to China’s lunar samples, Artemis updates, and more

NASA researchers can now directly ask for access to China’s Chang’e 5 lunar samples

A close look at some of the Chang’e 5 lunar samples. Images: CNSA: 1, 2, 3

In welcome news, NASA has secured an exception from the US Congress for its researchers to be able to apply for accessing lunar samples brought to Earth by China’s Chang’e 5 mission in 2020. This exception was necessary due to the 2011 Wolf Amendment, which bans bilateral scientific cooperation and collaboration between US and China. The development comes shortly after China’s recent invitation to international scientific communities to apply for studying the geologically young and uniquely important samples, which are distinct from ones fetched by Apollo and Luna.

Chinese scientists have used precise ages of studied Chang’e 5 samples to update the crater counting model, which is the basis for determining ages of most features on the Moon. For example, it’s from Chang’e 5 that we realized that some lunar features may be up to 240 million years older than previously thought. The scientific value of the Chang’e 5 samples isn’t limited to the Moon. Scientists are using these more accurate ages of lunar places and regions to calibrate the ages of features on other worlds such as Mars and Mercury. The samples also contain notable amounts of materials from meteorites, helping scientists unravel the type of asteroids that impacted our Moon in the past 2 billion years. Chang’e 5 samples are thus helping us refine our understanding of the chain of key events in our Solar System.

NASA-funded researchers will apply for the seventh round of Chang’e 5 sample solicitation proposals, which closes on December 22. Applicants can check some sample properties such as weight, particle sizes, and composition before applying. Andrew Jones notes that this move comes despite NASA Administrator Bill Nelson’s rhetoric against collaboration with China. Well, if intended and pushed for, space and science have an ability to transcend boundaries. And so I hope this case only serves as an example by which more non-aligned entities seek to engage in lunar cooperation.

Ling Xin reported in May that after exchanging 1.5 grams of Chang’e 5 samples with Russia last year for Soviet Luna 16 ones, China gifted France 1.5 grams of samples owing to their decades-long cooperation in space. Xin also pointed out that many of the over 100 research groups across China have had international collaborators from several European countries, Japan, Australia, and even the US (as is possible multilaterally). China has stored the bulk of the total 1.7 kilograms of Chang’e 5 samples for future studies with more advanced instruments. A small amount has been on public display at China's National Museum, and now Zhao Lei reports that some samples are being showcased at the Macao Science Center as well.

China is launching the Chang’e 6 mission next year to bring about two kilograms of lunar samples from the Apollo impact crater on the Moon’s farside, which should be scientifically even more valuable than the Chang’e 5 samples—seeing that it would be our first tactile window into the Moon’s mysterious farside. It would be amazing if the international access to lunar samples extended to Chang’e 6, including for the US.

A panorama shot by the Chang’e 5 lander, showing the robotic sampling arm and scoop marks in lunar regolith. Image: CNSA / CLEP

Artemis mission updates

Test fire of an RS-25 engine on the Fred Haise Test Stand at NASA’s Stennis Space Center. Image: Danny Nowlin / NASA

Many thanks to Epsilon3, Open Lunar Foundation, The Orbital Index and Joseph Biernat for sponsoring this week’s Moon Monday.


The Artemis Accords and the Outer Space Treaty

On November 30, Angola became the 33rd country and the third African nation to sign the US-led Artemis Accords for cooperative lunar exploration. Nigeria and Rwanda became signees last year in December. Cris van Eijk points out that Angola is the first Accords signatory to have neither signed nor ratified any UN space treaty, including the Outer Space Treaty that the Accords posits to build on. Relatedly, even in the passing of a year since Colombia signed the Accords, the country hasn’t ratified the Outer Space Treaty.

In any case, the onboarding of countries like Angola to the Accords is in line with what Marcia Smith reported last year—that the US has been pushing for a broad, veto-less international participation in the Accords independent of a country’s intentions to collaborate with NASA on Artemis missions.

Relatedly, a nation to look out for with respect to the Accords is South Africa. The country is aiding NASA with a crucial ground station which will provide high bandwidth communications to the agency during Artemis crewed missions. At the same time, South Africa recently formally joined the upcoming China-led long-term scientific base on the Moon’s south pole called the International Lunar Research Station (ILRS). It will be interesting to see if South Africa signs the Accords.

More Moon

  • In a symposium talk on November 28, ISRO Chief S. Somanath highlighted some key tentative missions and elements from an increasingly complex roadmap that will feed into and enable the newly announced national goal of sending an Indian to the Moon by 2040. These include the Indo-Japanese LUPEX rover and the Chandrayaan 4 sample return missions before end of decade, a Chandrayaan 5 mission with the ability to survive the lunar night, a resource extraction and utilization demonstration with Chandrayaan 6, a crewed lunar cruiser docking with the NASA-led Gateway international orbital habitat (as I predicted!), a partially reusable Next Generation Launch Vehicle (NGLV), and more.
Screengrab of an integrated lunar and crewed exploration roadmap for India. Image: S. Somanath / ISRO

Events and Jobs

  • The Lunar and Planetary Institute and the Universities Space Research Association are organizing the free Artemis Orbital Observation Science workshop on December 5. The meet is for the US lunar community to discuss and provide input to NASA on what Artemis astronauts across missions could do in lunar orbit with respect to observations.
  • The Moon Village Association is organizing its 7th international workshop and symposium from December 7–10 in Japan. Free online registration is available, which covers some sessions.
  • Firefly is hiring a US-based propulsion engineer to develop hypergolic engines for its Blue Ghost Moon landers, two of which will fly to the Moon as part of NASA’s CLPS program in 2024 and 2026 respectively.

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