Space and astronomy news
In the latest chapter of “The Mystery of the Lunar Swirls,” planetary scientists have a new theory to explain these odd markings on the Moon’s surface. It invokes underground magmas and strange magnetic anomalies.
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To get to the Moon, NASA is building a Lunar Gateway in orbit to facilitate easier access to the Moon. With construction beginning in 2028 as part of Artemis IV there will be an ongoing programme of enhancements and additions. NASA has now released a fabulous new 3D animation of the Lunar Gateway to showcase what the final Gateway will look like. It includes modules from partner nations and an Orion lunar landers dock to carry astronauts.
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In the coming years, NASA and other space agencies plan to extend the reach of human exploration. This will include creating infrastructure on the Moon that will allow for crewed missions on a regular basis. This infrastructure will allow NASA and its international partners to make the next great leap by sending crewed missions to Mars (by 2039 at the earliest). Having missions operate this far from Earth for extended periods means that opportunities for resupply will be few and far between. As a result, crews will need to rely on In-Situ Resource Utilization (ISRU), where local resources are leveraged to provide for basic needs.
In addition to air, water, and building materials, the ability to create propellant from local resources is essential. According to current mission architectures, this would consist of harvesting water ice in the polar regions and breaking it down to create liquid oxygen (LOX) and liquid hydrogen (LH2). However, according to a new study led by engineers from McGill University, rocket propellant could be fashioned from lunar regolith as well. Their findings could present new opportunities for future missions to the Moon, which would no longer be restricted to the polar regions.
Continue reading “Making Rocket Fuel Out of Lunar Regolith”
Three weeks after it lifted off from the far side of the moon, China’s Chang’e-6 spacecraft dropped off a capsule containing first-of-its-kind lunar samples for retrieval from the plains of Inner Mongolia.
The gumdrop-shaped sample return capsule floated down to the ground on the end of a parachute, with the descent tracked on live television. After today’s touchdown, at 2:07 p.m. local time (0607 GMT), members of the mission’s recovery team checked the capsule and unfurled a Chinese flag nearby.
Chang’e-6, which was launched in early May, is the first robotic mission to land and lift off again from the moon’s far side — the side that always faces away from Earth. It’s also the first mission to bring dirt and rocks from the far side back to Earth.
“The Chang’e-6 lunar exploration mission achieved complete success,” Zhang Kejian, director of the China National Space Administration, said from mission control. Chinese President Xi Jinping extended congratulations to the mission team, the state-run Xinhua news service reported.
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Our Moon is shrinking and has been doing so since just after its formation ~4.5 billion years ago from a collision with the young Earth. That shrinkage, along with a constant rain of micrometeorites, causes lunar seismic activity. NASA plans to send two instruments to the Moon to measure its moonquakes. Those dual seismometers share technology first used on Mars by the InSight lander to measure more than a thousand marsquakes.
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China says its Chang’e-6 spacecraft has gathered up soil and rocks from the far side of the moon and has lifted off from the surface, beginning a journey to bring the samples back to Earth. The probe’s payload represents the first lunar samples ever collected from the far side.
In a status update, the China National Space Administration said the Chang’e-6 ascent module successfully reached lunar orbit, where it’s due to transfer the samples to a re-entry capsule hooked up to the probe’s orbiter. (Update: CNSA says the ascent module made its rendezvous with the orbiter and transferred the samples to the re-entry capsule on June 6.)
If all goes according to plan, the orbiter will leave the moon’s orbit, head back to Earth and drop off the re-entry capsule for retrieval in China’s Inner Mongolia region sometime around June 25.
Continue reading “Chinese Probe Collects Moon Samples and Heads for Earth”
After touching down on the moon’s far side, China’s Chang’e-6 lander is collecting samples to bring back to Earth — and sending back imagery documenting its mission.
Chang’e-6, which was launched May 3, went through weeks’ worth of in-space maneuvers that climaxed with its weekend landing in the moon’s South Pole-Aitken Basin region. The mission plan calls for the probe to collect samples of lunar soil and rock over the course of about two days, and then pack them up for the return trip.
If the operation is successful, Chang’e-6 would bring back the first fresh lunar samples ever collected on the moon’s far side — following up on the Chang’e-5 mission in 2020, which returned samples from the moon’s Earth-facing side.
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There was a time when maps of the Moon were created from telescopic observations and drawings. Indeed Sir Patrick Moore created maps of the Moon that were used during the historic Apollo landings. Now researchers have enhanced a technique to create accurate maps from existing satellite images. Their approach uses a technique called ‘shape-from-shading’ and involves analyzing shadows to estimate the features and shape of the terrain. Future lunar missions will be able to use the maps to identify hazards on the surface making them far safer.
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As humanity returns to the Moon in the next few years, they’re going to need water to survive. While resupplies from Earth would work for a time, eventually the lunar base would have to become self-sustaining? So, how much water would be required to make this happen? This is what a recently submitted study hopes to address as a team of researchers from Baylor University explored water management scenarios for a self-sustaining moonbase, including the appropriate location of the base and how the water would be extracted and treated for safe consumption using appropriate personnel.
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The Moon’s polar regions are home to permanently shadowed craters. In those craters is ancient ice, and establishing a presence on the Moon means those water ice deposits are a valuable resource. Astronauts will likely use solar energy to work in these craters and harvest water, but the Sun never shines there.
What’s the solution? According to one team of researchers, a solar collector perched on the crater’s rim.
Continue reading “Lighting Up the Moon’s Permanently Shadowed Craters”