Tag Archives: science

Lockheed Martin is building a Moon-to-Earth satellite communications network

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If humanity is going to have a long-term presence on the Moon, it's going to need reliable communications — and Lockheed Martin thinks it can provide that link. The company has created a spinoff devoted to lunar infrastructure, Crescent Space, whose first project is a Moon-to-Earth satellite network. Parsec, as it's called, uses a constellation of small lunar satellites to provide a non-stop connection between astronauts, their equipment and the people back home. The system will also provide navigation help.

The technology should help explorers keep in touch, and assist with spacecraft course changes. As Lockheed Martin explains, though, it could prove vital to those on lunar soil. Parsec's nodes create a lunar equivalent to GPS, giving astronauts their exact positions and directions back to base. A rover crew might know how to return home without driving into a dangerous crater, for instance.

Crescent's first Parsec nodes should be operational by 2025, with Lockheed Martin providing the satellites. And before you ask: yes, the company is clearly hoping for some big customers. CEO Joe Landon (formerly a Lockheed Martin Space VP) claims Crescent is "well positioned" to support NASA's Artemis Moon landings and other exploratory missions.

The startup may seem premature when NASA's Artemis program won't even conduct a lunar flyby until late 2024, and a landing at the end of 2025. However, there's already a clear race to the Moon that includes national efforts from the US and China as well as private projects like SpaceX's lunar tourism. Crescent could help Lockheed Martin profit from that rush without disrupting its existing businesses.

This article originally appeared on Engadget at https://www.engadget.com/lockheed-martin-is-building-a-moon-to-earth-satellite-communications-network-204507410.html?src=rss

Lockheed Martin is building a Moon-to-Earth satellite communications network

Posted on by

If humanity is going to have a long-term presence on the Moon, it's going to need reliable communications — and Lockheed Martin thinks it can provide that link. The company has created a spinoff devoted to lunar infrastructure, Crescent Space, whose first project is a Moon-to-Earth satellite network. Parsec, as it's called, uses a constellation of small lunar satellites to provide a non-stop connection between astronauts, their equipment and the people back home. The system will also provide navigation help.

The technology should help explorers keep in touch, and assist with spacecraft course changes. As Lockheed Martin explains, though, it could prove vital to those on lunar soil. Parsec's nodes create a lunar equivalent to GPS, giving astronauts their exact positions and directions back to base. A rover crew might know how to return home without driving into a dangerous crater, for instance.

Crescent's first Parsec nodes should be operational by 2025, with Lockheed Martin providing the satellites. And before you ask: yes, the company is clearly hoping for some big customers. CEO Joe Landon (formerly a Lockheed Martin Space VP) claims Crescent is "well positioned" to support NASA's Artemis Moon landings and other exploratory missions.

The startup may seem premature when NASA's Artemis program won't even conduct a lunar flyby until late 2024, and a landing at the end of 2025. However, there's already a clear race to the Moon that includes national efforts from the US and China as well as private projects like SpaceX's lunar tourism. Crescent could help Lockheed Martin profit from that rush without disrupting its existing businesses.

This article originally appeared on Engadget at https://www.engadget.com/lockheed-martin-is-building-a-moon-to-earth-satellite-communications-network-204507410.html?src=rss

Water trapped in tiny glass beads on the Moon could hydrate future settlements

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China’s Chang’e 5 rover has found tiny glass beads containing water in an impact crater on the Moon. Samples collected from a 2020 mission found beads with water content as high as 2,000 parts per million (PPM). Given the prevalence of these glass spheres on the lunar surface, there may be enough to provide 71 trillion gallons of water.

Some beads formed when asteroids collided with the Moon millions of years ago, while others came from ancient volcanoes. Scientists believe the water originated from a chemical reaction when hydrogen ions emitted from the sun — transported to the lunar surface from solar winds — combined with oxygen atoms inside the beads. The water-filled beads are tiny, ranging from “tens of micrometers to a few millimeters.” Still, there are enough on the Moon’s surface to (theoretically) supply an estimated 270 trillion kilograms of water — enough to fill 100 million Olympic-sized swimming pools.

However, scientists haven’t yet figured out how to collect them, and they would need to heat them to around 212 degrees Fahrenheit to extract water. Still, they could be a resource for future lunar settlements, where astronauts could use water for drinking, bathing, cooking, cleaning and even producing rocket fuel.

Scientists believe other moons in our Solar System may have similar beads. “Our direct measurements of this surface reservoir of lunar water show that impact glass beads can store substantial quantities of solar wind-derived water on the moon and suggest that impact glass may be water reservoirs on other airless bodies,” the study’s authors wrote. “The presence of water, stored in impact glass beads, is consistent with the remote detection of water at lower-latitude regions of the Moon, Vesta and Mercury. Our findings indicate that the impact glasses on the surface of Solar System airless bodies are capable of storing solar wind-derived water and releasing it to space.”

The glass beads aren’t our first glimpse at water on the Moon. In 2009, NASA crashed a probe into the Cabeus crater that led to water detection; in 2018, NASA found direct evidence of ice deposits in the Moon’s permanently shadowed craters on its north and south poles. NASA and China / Russia plan to put lunar bases at the Moon’s South Pole within the next decade; the competing initiatives both hope to have inhabitable bases ready by the early-to-mid-2030s.

This article originally appeared on Engadget at https://www.engadget.com/water-trapped-in-tiny-glass-beads-on-the-moon-could-hydrate-future-settlements-200030344.html?src=rss

Blue Origin pins last summer’s NS-23 rocket failure on a faulty engine nozzle

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Blue Origin now has an explanation for the booster failure that cut a New Shepard flight short last September. Jeff Bezos' company has determined that a "thermo-structural failure" in the NS-23 rocket's engine nozzle was to blame. Operational temperatures for the nozzle climbed higher than expected following cooling system design changes, creating fatigue that misaligned the thrust and activated the crew capsule's escape system.

Engineers are already taking "corrective actions" that include redesigning the combustion chamber and operating conditions. Blue Origin has also tweaked the nozzle design to improve its structural integrity. The capsule wasn't damaged and will fly again, Blue Origin says.

The company says it hopes to resume flights "soon," but hasn't provided an exact date. It intends to restart operations by re-flying the research payload from the aborted mission. The Federal Aviation Administration has to accept the incident findings before Blue Origin can move forward.

There's plenty of pressure on Blue Origin to address the issues. The company recently obtained a NASA contract to fly a science mission to Mars using its yet-to-launch New Glenn rocket, and has been pushing for a lunar lander agreement. The sooner Blue Origin can prove that its rocketry is trustworthy, the sooner it can secure customers that include governments and space tourists.

Rivals are facing problems of their own. Relativity Space's first 3D-printed rocket failed to reach orbit earlier this month. SpaceX, meanwhile, has yet to successfully fire all of Starship's engines at the same time. That's not including past problems like Rocket Lab's setbacks. Private spaceflight remains difficult, and Blue Origin is just the latest to illustrate that fact.

This article originally appeared on Engadget at https://www.engadget.com/blue-origin-pins-last-summers-ns-23-rocket-failure-on-a-faulty-engine-nozzle-195714293.html?src=rss

Blue Origin pins last summer’s NS-23 rocket failure on a faulty engine nozzle

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Blue Origin now has an explanation for the booster failure that cut a New Shepard flight short last September. Jeff Bezos' company has determined that a "thermo-structural failure" in the NS-23 rocket's engine nozzle was to blame. Operational temperatures for the nozzle climbed higher than expected following cooling system design changes, creating fatigue that misaligned the thrust and activated the crew capsule's escape system.

Engineers are already taking "corrective actions" that include redesigning the combustion chamber and operating conditions. Blue Origin has also tweaked the nozzle design to improve its structural integrity. The capsule wasn't damaged and will fly again, Blue Origin says.

The company says it hopes to resume flights "soon," but hasn't provided an exact date. It intends to restart operations by re-flying the research payload from the aborted mission. The Federal Aviation Administration has to accept the incident findings before Blue Origin can move forward.

There's plenty of pressure on Blue Origin to address the issues. The company recently obtained a NASA contract to fly a science mission to Mars using its yet-to-launch New Glenn rocket, and has been pushing for a lunar lander agreement. The sooner Blue Origin can prove that its rocketry is trustworthy, the sooner it can secure customers that include governments and space tourists.

Rivals are facing problems of their own. Relativity Space's first 3D-printed rocket failed to reach orbit earlier this month. SpaceX, meanwhile, has yet to successfully fire all of Starship's engines at the same time. That's not including past problems like Rocket Lab's setbacks. Private spaceflight remains difficult, and Blue Origin is just the latest to illustrate that fact.

This article originally appeared on Engadget at https://www.engadget.com/blue-origin-pins-last-summers-ns-23-rocket-failure-on-a-faulty-engine-nozzle-195714293.html?src=rss

Relativity Space launched its 3D-printed rocket, but failed to reach orbit

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Relativity Space has finally launched its 3D-printed rocket after multiple scrubbed attempts, but the results are decidedly mixed. The startup's Terran 1 vehicle successfully lifted off from Cape Canaveral late Wednesday, but it failed to reach orbit after the second stage engine ignited only momentarily. It's not clear what led to the failure, but Relativity is promising updates in the "coming days."

The company still characterizes the mission as an accomplishment. Terran 1 endured Max-Q (maximum dynamic pressure), the moment expected to place the most stress on the 3D-printed design. The rocket wasn't carrying a customer payload. Instead, it carried the first metal produced from Relativity's 3D printing system.

As CNNexplains, the two previous launch attempts were plagued with problems. Relatively had trouble cooling propellant in time for the first liftoff, while the second was hampered by both a wayward boat and a software flaw that prompted an automatic engine cutoff shortly after ignition.

Relativity is using the expendable Terran 1 to demonstrate the viability of its 3D printing technique ahead of the reusable Terran R rocket's planned 2024 launch. The manufacturing process theoretically provides simpler, more reliable rockets that are cheaper to make and can be ready within weeks. That, in turn, could lower the costs of delivering satellites and experiments into orbit.

While this launch represents progress, there's mounting pressure to complete testing. Relativity already has contracts that include launching OneWeb satellites and Impulse Space's commercial Mars mission. There's also the simple matter of competition: rivals like SpaceX, Blue Origin and Rocket Lab aren't standing still, and any setbacks limit Relativity's chances to win business.

This article originally appeared on Engadget at https://www.engadget.com/relativity-space-launched-its-3d-printed-rocket-but-failed-to-reach-orbit-153502328.html?src=rss

NASA’s AIM spacecraft goes silent after a 15-year run studying the Earth’s oldest clouds

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After 15 years in space, NASA’s AIM mission is ending. In a brief blog post spotted by Gizmodo, the agency said Thursday it was ending operational support for the spacecraft due to a battery power failure. NASA first noticed issues with AIM’s battery in 2019, but the probe was still sending a “significant amount of data” back to Earth. Following another recent decline in battery power, NASA says AIM has become unresponsive. The AIM team will monitor the spacecraft for another two weeks in case it reboots, but judging from the tone of NASA’s post, the agency isn’t holding its breath.

NASA launched the AIM – Aeronomy of Ice in the Mesosphere – mission in 2007 to study noctilucent or night-shining clouds, which are sometimes known as fossilized clouds due to the fact they can last hundreds of years in the Earth's upper atmosphere. From its vantage point 370 miles above the planet's surface, the spacecraft proved invaluable to scientists, with data collected by AIM appearing in 379 peer-reviewed papers, including a recent 2018 study that found methane emissions from human-driven climate change are causing night-shining clouds to form more frequently. Pretty good for a mission NASA initially expected to operate for only two years. AIM’s demise follows that of another long-serving NASA spacecraft. At the start of the year, the agency deorbited the Earth Radiation Budget Satellite following a nearly four-decade run collecting ozone and atmospheric measurements.

This article originally appeared on Engadget at https://www.engadget.com/nasas-aim-spacecraft-goes-silent-after-a-15-year-run-studying-the-earths-oldest-clouds-162853411.html?src=rss

NASA’s AIM spacecraft goes silent after a 15-year run studying the Earth’s oldest clouds

Posted on by

After 15 years in space, NASA’s AIM mission is ending. In a brief blog post spotted by Gizmodo, the agency said Thursday it was ending operational support for the spacecraft due to a battery power failure. NASA first noticed issues with AIM’s battery in 2019, but the probe was still sending a “significant amount of data” back to Earth. Following another recent decline in battery power, NASA says AIM has become unresponsive. The AIM team will monitor the spacecraft for another two weeks in case it reboots, but judging from the tone of NASA’s post, the agency isn’t holding its breath.

NASA launched the AIM – Aeronomy of Ice in the Mesosphere – mission in 2007 to study noctilucent or night-shining clouds, which are sometimes known as fossilized clouds due to the fact they can last hundreds of years in the Earth's upper atmosphere. From its vantage point 370 miles above the planet's surface, the spacecraft proved invaluable to scientists, with data collected by AIM appearing in 379 peer-reviewed papers, including a recent 2018 study that found methane emissions from human-driven climate change are causing night-shining clouds to form more frequently. Pretty good for a mission NASA initially expected to operate for only two years. AIM’s demise follows that of another long-serving NASA spacecraft. At the start of the year, the agency deorbited the Earth Radiation Budget Satellite following a nearly four-decade run collecting ozone and atmospheric measurements.

This article originally appeared on Engadget at https://www.engadget.com/nasas-aim-spacecraft-goes-silent-after-a-15-year-run-studying-the-earths-oldest-clouds-162853411.html?src=rss

This insertable 3D printer will repair tissue damage from the inside

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Researchers at the University of New South Wales, Sydney, have developed a flexible 3D bioprinter that can layer organic material directly onto organs or tissue. Unlike other bioprinting approaches, this system would only be minimally invasive, perhaps helping to avoid major surgeries or the removal of organs. It sounds like the future — at least in theory — but the research team warns it’s still five to seven years away from human testing.

The printer, dubbed F3DB, has a soft robotic arm that can assemble biomaterials with living cells onto damaged internal organs or tissues. Its snake-like flexible body would enter the body through the mouth or anus, with a pilot / surgeon guiding it toward the injured area using hand gestures. In addition, it has jets that can spray water onto the target area, and its printing nozzle can double as an electric scalpel. The team hopes its multifunctional approach could someday be an all-in-one tool (incising, cleaning and printing) for minimally invasive operations.

The F3DB’s robotic arm uses three soft-fabric-bellow actuators using a hydraulic system composed of “DC-motor-driven syringes that pump water to the actuators,” as summarized by IEEE Spectrum. Its arm and flexible printing head can each move in three degrees of freedom (DOFs), similar to desktop 3D printers. In addition, it includes a flexible miniature camera to let the operator view the task in real time.

The research team ran its first lab tests on the device using non-biomaterials: chocolate and liquid silicone. They later tested it on a pig’s kidney before finally moving onto biomaterials printed onto a glass surface in an artificial colon. “We saw the cells grow every day and increase by four times on day seven, the last day of the experiment,” said Thanh Nho Do, co-leader of the team and Senior Lecturer at UNSW’s Graduate School of Biomedical Engineering. “The results show the F3DB has strong potential to be developed into an all-in-one endoscopic tool for endoscopic submucosal dissection procedures.”

The team believes the device is brimming with potential, but further testing will be necessary to bring it into the real world. The next steps would include studying its use on animals and, eventually, humans; Do believes that’s about five to seven years away. But, according to Ibrahim Ozbolat, professor of engineering science and mechanics at Pennsylvania State University, “commercialization can only be a matter of time.”

This article originally appeared on Engadget at https://www.engadget.com/this-insertable-3d-printer-will-repair-tissue-damage-from-the-inside-185147733.html?src=rss

This insertable 3D printer will repair tissue damage from the inside

Posted on by

Researchers at the University of New South Wales, Sydney, have developed a flexible 3D bioprinter that can layer organic material directly onto organs or tissue. Unlike other bioprinting approaches, this system would only be minimally invasive, perhaps helping to avoid major surgeries or the removal of organs. It sounds like the future — at least in theory — but the research team warns it’s still five to seven years away from human testing.

The printer, dubbed F3DB, has a soft robotic arm that can assemble biomaterials with living cells onto damaged internal organs or tissues. Its snake-like flexible body would enter the body through the mouth or anus, with a pilot / surgeon guiding it toward the injured area using hand gestures. In addition, it has jets that can spray water onto the target area, and its printing nozzle can double as an electric scalpel. The team hopes its multifunctional approach could someday be an all-in-one tool (incising, cleaning and printing) for minimally invasive operations.

The F3DB’s robotic arm uses three soft-fabric-bellow actuators using a hydraulic system composed of “DC-motor-driven syringes that pump water to the actuators,” as summarized by IEEE Spectrum. Its arm and flexible printing head can each move in three degrees of freedom (DOFs), similar to desktop 3D printers. In addition, it includes a flexible miniature camera to let the operator view the task in real time.

The research team ran its first lab tests on the device using non-biomaterials: chocolate and liquid silicone. They later tested it on a pig’s kidney before finally moving onto biomaterials printed onto a glass surface in an artificial colon. “We saw the cells grow every day and increase by four times on day seven, the last day of the experiment,” said Thanh Nho Do, co-leader of the team and Senior Lecturer at UNSW’s Graduate School of Biomedical Engineering. “The results show the F3DB has strong potential to be developed into an all-in-one endoscopic tool for endoscopic submucosal dissection procedures.”

The team believes the device is brimming with potential, but further testing will be necessary to bring it into the real world. The next steps would include studying its use on animals and, eventually, humans; Do believes that’s about five to seven years away. But, according to Ibrahim Ozbolat, professor of engineering science and mechanics at Pennsylvania State University, “commercialization can only be a matter of time.”

This article originally appeared on Engadget at https://www.engadget.com/this-insertable-3d-printer-will-repair-tissue-damage-from-the-inside-185147733.html?src=rss