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Aujourd’hui — 28 avril 2024Flux principal

Japan's Lunar Lander Made It Through Another Lunar Night

Par : EditorDavid
28 avril 2024 à 07:34
Japan's moon lander "has woken up again," reports the Register, "having survived three lunar nights." A post on social media from the lander's X account confirmed that once more, Japan's Smart Lander for Investigating Moon (SLIM) had defied the odds and snapped a picture of the lunar surface using its navigation camera. SLIM was revived a few weeks ago, after a second lunar night. However, with telemetry showing that some of the electronics (temperature sensors) and battery cells were malfunctioning, the chances of the lander making it through a third lunar night seemed remote. Yet against all odds, SLIM has stirred once more on the lunar surface despite lacking heaters to keep its electronics warm.

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Hier — 27 avril 2024Flux principal

China Reveals Most Detailed Geological Map of the Moon Ever Created

Par : BeauHD
27 avril 2024 à 07:00
Longtime Slashdot reader AmiMoJo shares a report from Nature: The Chinese Academy of Sciences (CAS) has released the highest-resolution geological maps of the Moon yet. The Geologic Atlas of the Lunar Globe, which took more than 100 researchers over a decade to compile, reveals a total of 12,341 craters, 81 basins and 17 rock types, along with other basic geological information about the lunar surface. The maps were made at the unprecedented scale of 1:2,500,000. The CAS also released a book called Map Quadrangles of the Geologic Atlas of the Moon, comprising 30 sector diagrams which together form a visualization of the whole Moon. [...] China will use the maps to support its lunar ambitions and Liu says that the maps will be beneficial to other countries as they undertake their own Moon missions. Three spacecraft have launched aiming for the Moon so far this year, and in May, China intends to send a craft to collect rocks from the Moon's far side.

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À partir d’avant-hierFlux principal

NASA Picks 3 Companies to Help Astronauts Drive Around the Moon

Par : BeauHD
4 avril 2024 à 07:00
NASA announced on Wednesday that they have selected three companies to develop preliminary designs for vehicles to take astronauts around the south polar region of the Moon. "After the astronauts return to Earth, these vehicles would be able to self-drive around as robotic explorers, similar to NASA's rovers on Mars," reports the New York Times. "The self-driving capability would also allow the vehicle to meet the next astronaut mission at a different location." From the report: The companies are Intuitive Machines of Houston, which in February successfully landed a robotic spacecraft on the moon; Lunar Outpost of Golden, Colo.; and Venturi Astrolab of Hawthorne, Calif. Only one of the three will actually build a vehicle for NASA and send it to the moon. NASA had asked for proposals of what it called the lunar terrain vehicle, or L.T.V., that could drive at speeds up to 9.3 miles per hour, travel a dozen miles on a single charge and allow astronauts to drive around for eight hours. The agency will work with the three companies for a year to further develop their designs. Then NASA will choose one of them for the demonstration phase. The L.T.V. will not be ready in time for the astronauts of Artemis III, the first landing in NASA's return-to-the-moon program, which is currently scheduled for 2026. The plan is for the L.T.V. to be on the lunar surface ahead of Artemis V, the third astronaut landing that is expected in 2030, said Lara Kearney, manager of the extravehicular activity and human surface mobility program at the NASA Johnson Space Center. "If they can get there earlier, we'll take it earlier," Ms. Kearney said. The L.T.V. contract will be worth up to $4.6 billion over the next 15 years -- five years of development and then a decade of operations on the moon, most of it going to the winner of this competition. But Ms. Kearney said the contracts allow NASA to later finance the development of additional rovers, or allow other companies to compete in the future.

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NASA To Create Time Standard For the Moon

Par : BeauHD
3 avril 2024 à 07:00
artmancc writes: The White House has directed NASA and other federal agencies to get to work on a plan to implement precision timekeeping and dissemination on the moon and elsewhere in space. Reuters cited a memo from the head of the White House Office of Science and Technology Policy (OSTP) that "instructed the space agency to work with other parts of the U.S. government to devise a plan by the end of 2026 for setting what it called a Coordinated Lunar Time (LTC). The name of the proposed time standard is similar to the terrestrial time standard known as Coordinated Universal Time (UTC). "OSTP chief Arati Prabhakar's memo said that for a person on the moon, an Earth-based clock would appear to lose on average 58.7 microseconds per Earth-day and come with other periodic variations that would further drift moon time from Earth time," Reuters reported. An unidentified OSTP official said the lunar time standard is needed for secure and synchronized communication between astronauts, satellites orbiting the moon, and Earth.

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Astronomers Demand Radio Silence at the Moon's Far Side, But Resistance May Be Futile

Par : EditorDavid
24 mars 2024 à 18:34
Gizmodo reports that increased activity on the Moon "may affect the unique radio silence on the lunar far side, an ideal location for radio telescopes to pick up faint signals from the cosmic past." This week, the International Academy of Astronautics (IAA) held the first Moon Farside Protection Symposium in Italy to advocate for preserving radio silence on the far side of the Moon. The symposium hopes to raise awareness about the threat facing the far side of the Moon and develop approaches to shielding it from artificial radio emissions.... NASA has shown interest in using the lunar radio silence, proposing an ultra-long-wavelength radio telescope inside a crater on the far side of the Moon. The Lunar Crater Radio Telescope is designed to observe the universe at frequencies below 30 megahertz, which are largely unexplored by humans since those signals are reflected by the Earth's ionosphere, according to NASA. At those low frequencies, radio telescopes on the Moon can detect near-Earth objects approaching our planet before other observatories, it can search for signals of alien civilizations, and study organic molecules in interstellar space... As more missions head towards the Moon, however, that perfect silence is increasingly being compromised. Earlier this week, for example, China launched a satellite to relay communication between ground operations on Earth and an upcoming mission on the far side of the Moon. The satellite, Queqiao-2, is the first of a constellation of satellites that China hopes to deploy by 2040 to communicate with future crewed missions on the Moon and Mars. As part of its Artemis program, NASA is aiming to build the Lunar Gateway, a space station designed to orbit the Moon to support future missions to the lunar surface and Mars. In advance of this, a NASA-funded cubesat, called CAPSTONE, has entered into a unique halo orbit to demonstrate the stability and practicality of this trajectory for future lunar missions... CAPSTONE marks the beginning of something big — establishing a permanent communication link between Earth and lunar assets, and ensuring the steady, uninterrupted flow of data. NASA and its Chinese counterparts have eerily similar plans for lunar exploration, and the Moon is currently a 'free-for-all' with no regulations set in place as to who can own our dusty orbital companion. "In other words, things are about to get real loud out there as far as radio transmissions are concerned."

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Can Interlune Mine Helium-3 on the Moon?

Par : EditorDavid
16 mars 2024 à 17:34
The Washington Post reports: Nearly a decade ago, Congress passed a law that allows private American space companies the rights to resources they mine on celestial bodies, including the moon. Now, there's a private venture that says it intends to do just that. Founded by a pair of former executives from Blue Origin, the space venture founded by Jeff Bezos, and an Apollo astronaut, the company, Interlune, announced itself publicly Wednesday by saying it has raised $18 million and is developing the technology to harvest and bring materials back from the moon... Specifically, Interlune is focused on Helium-3, a stable isotope that is scarce on Earth but plentiful on the moon and could be used as fuel in nuclear fusion reactors as well as helping power the quantum computing industry. The company, based in Seattle, has been working for about four years on the technology, which comes as the commercial sector is working with NASA on its goal of building an enduring presence on and around the moon... Rob Meyerson, the former president of Blue Origin, co-founded Interlune with Gary Lai, another former executive at Blue, and Harrison Schmitt, a geologist who flew to the moon during Apollo 17... In an interview, Meyerson said that the company intends to be the first to collect, return and then sell lunar resources and test the 2015 law. There is a large demand for Helium-3 in the quantum computing industry, which requires some of its systems to operate in extremely cold temperatures, and Interlune has already lined up a "customer that wants to buy lunar resources in large quantities," he said. "We intend to be the first to go commercialize and deliver and support those customers," he said. NASA might want to be a customer as well. In 2020, it said it was looking for companies to collect rocks and dirt from the lunar surface and sell them to NASA as part of a technology development program that would eventually help astronauts "live off the land...." The company's funding round was led by the venture capital firm Seven Seven Six, whose founder and general partner, Alexis Ohanian, said that the space sector has become far more appealing to investors. "The space economy is something we can actually talk about with a straight face now, and I think some of the smartest people on the planet are making those efforts," he said... He said he was aware that it might take years, or longer for a moon mining business to make money. But he said that, "we're comfortable waiting for a decade plus to see those returns." NASA is planning more missions like the Intuitive Machines landing earlier this year, according to the article, "which it says will not only help pave the way for humans to return to the moon but for private industry to begin commercial operations there as well." Interlune plans "a prospecting machine" as soon as 2026, followed by an "end-to-end demonstration" in 2028 that harvests and returns a small quanity of Helium-3, and then full-scale operations by 2030. "China has also said that it is interested in extracting other resources, including Helium-3, which it said was present in a sample it returned from the moon in 2020."

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Japan's Moon Lander Survived a 354-Hour Lunar Night. Now It Faces a Second One

Par : EditorDavid
3 mars 2024 à 05:04
It completed the most precise landing ever on the moon — albeit upside-down. And then it faced a "lunar night" lasting about two weeks where temperatures drop to -270 degrees Fahrenheit, reports the Times of India. But then, "Despite not being designed for the extreme temperatures, SLIM surprised scientists by coming back to life after the two-week-long lunar night." More from Space.com: The lander woke up on February 26 during extremely hot temperatures of 212 Fahrenheit (100 Celsius) in its region and has been making contact here and there with Earth in the days since. Most recently, SLIM attempted observations with its multiband spectroscopic camera, but "it did not work properly," JAXA officials wrote. "This seems to be due to the effects of overnight," the update continued, referring to the frigid two-week-long lunar night that SLIM experienced before the sun shone near Shioli crater again. "But we will continue to investigate based on the data we have obtained for the next opportunity...." "We received so much support for our operations after the lunar night," the agency posted on social media — adding "thank you!" The Times of India reports that "JAXA officially announced SLIM's return to a dormant state on March 1, sharing an image of the lunar surface captured by the probe." Above the photo, JAXA posted this hopeful message. "Although the probability of a failure increases with the repeated severe temperature cycles, SLIM operation will attempt to resume when the sun rises (late March). #GoodAfterMoon." And Space.com notes that "Despite all, SLIM has met both main and extended mission objectives: Landing precisely on the moon, deploying two tiny rovers and conducting science with its navigation camera and its spectroscopic camera, particularly searching for signs of olivine on the surface." Thanks to long-time Slashdot reader AmiMoJo for sharing the news.

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