Members Can Post Anonymously On This Site
Eye test for lunar impact surveyor
-
Similar Topics
-
By European Space Agency
In a final test before its shipping to its Indian launch site, ESA’s eclipse-making double-satellite Proba-3 mission has received commands from its science team and transmitted images back, exactly as it will operate in orbit.
View the full article
-
By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Gateway’s Habitation and Logistics Outpost stands vertically inside a Thales Alenia Space facility in Turin, Italy, after completing static load testing. Thales Alenia Space Major Gateway hardware recently crossed an important testing milestone on its path to launch to the Moon, where it will support new science and house astronauts in lunar orbit.
Gateway’s HALO (Habitation and Logistics Outpost) successfully completed static load testing, a rigorous stress test of how well the structure responds to the forces encountered in deep space. Thales Alenia Space, subcontractor to Northrop Grumman, conducted the testing in Turin, Italy. Static load testing is one of the major environmental stress tests HALO will undergo, and once all phases of testing are complete, the module will be ready to move from Italy to Gilbert, Arizona, where Northrop Grumman will complete final outfitting.
HALO is one of four pressurized Gateway modules where astronauts will live, conduct science, and prepare for missions to the lunar South Pole region. It will launch with Gateway’s Power and Propulsion Element on a SpaceX Falcon Heavy rocket to lunar orbit.
Gateway is humanity’s first lunar space station supporting a new era of exploration and scientific discovery as part of NASA’s Artemis campaign that will establish a sustained presence on and around the Moon, paving the way for the first crewed mission to Mars.
Gateway’s Habitation and Logistics Outpost stands vertically inside a Thales Alenia Space facility in Turin, Italy, after completing static load testing. Thales Alenia Space Learn More About Gateway Share
Details
Last Updated Oct 03, 2024 ContactBriana R. Zamorabriana.r.zamora@nasa.govLocationJohnson Space Center Related Terms
Gateway Space Station Artemis Earth's Moon Exploration Systems Development Mission Directorate Gateway Program Humans in Space Johnson Space Center Explore More
2 min read Artemis IV: Gateway Gadget Fuels Deep Space Dining
Learn about the handy device NASA is developing to help astronauts rehydrate their meals aboard…
Article 4 weeks ago 2 min read Gateway: Energizing Exploration
Discover the cutting-edge technology powering Gateway, humanity's first lunar space station.
Article 1 month ago 3 min read Gateway: Up Close in Stunning Detail
Witness Gateway in stunning detail with this video that brings the future of lunar exploration…
Article 3 months ago Keep Exploring Discover More Topics From NASA
Gateway
Built with international and commercial partners, Gateway will be humanity’s first space station around the Moon as a vital component…
Orion Spacecraft
Space Launch System (SLS)
Human Landing System
View the full article
-
By NASA
5 min read
NASA’s LRO: Lunar Ice Deposits are Widespread
Deposits of ice in lunar dust and rock (regolith) are more extensive than previously thought, according to a new analysis of data from NASA’s LRO (Lunar Reconnaissance Orbiter) mission. Ice would be a valuable resource for future lunar expeditions. Water could be used for radiation protection and supporting human explorers, or broken into its hydrogen and oxygen components to make rocket fuel, energy, and breathable air.
Prior studies found signs of ice in the larger permanently shadowed regions (PSRs) near the lunar South Pole, including areas within Cabeus, Haworth, Shoemaker and Faustini craters. In the new work, “We find that there is widespread evidence of water ice within PSRs outside the South Pole, towards at least 77 degrees south latitude,” said Dr. Timothy P. McClanahan of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and lead author of a paper on this research published October 2 in the Planetary Science Journal.
The study further aids lunar mission planners by providing maps and identifying the surface characteristics that show where ice is likely and less likely to be found, with evidence for why that should be. “Our model and analysis show that greatest ice concentrations are expected to occur near the PSRs’ coldest locations below 75 Kelvin (-198°C or -325°F) and near the base of the PSRs’ poleward-facing slopes,” said McClanahan.
This illustration shows the distribution of permanently shadowed regions (in blue) on the Moon poleward of 80 degrees South latitude. They are superimposed on a digital elevation map of the lunar surface (grey) from the Lunar Orbiter Laser Altimeter instrument on board NASA’s Lunar Reconnaissance Orbiter spacecraft. NASA/GSFC/Timothy P. McClanahan “We can’t accurately determine the volume of the PSRs’ ice deposits or identify if they might be buried under a dry layer of regolith. However, we expect that for each surface 1.2 square yards (square meter) residing over these deposits there should be at least about five more quarts (five more liters) of ice within the surface top 3.3 feet (meter), as compared to their surrounding areas,” said McClanahan. The study also mapped where fewer, smaller, or lower-concentration ice deposits would be expected, occurring primarily towards warmer, periodically illuminated areas.
Ice could become implanted in lunar regolith through comet and meteor impacts, released as vapor (gas) from the lunar interior, or be formed by chemical reactions between hydrogen in the solar wind and oxygen in the regolith. PSRs typically occur in topographic depressions near the lunar poles. Because of the low Sun angle, these areas haven’t seen sunlight for up to billions of years, so are perpetually in extreme cold. Ice molecules are thought to be repeatedly dislodged from the regolith by meteorites, space radiation, or sunlight and travel across the lunar surface until they land in a PSR where they are entrapped by extreme cold. The PSR’s continuously cold surfaces can preserve ice molecules near the surface for perhaps billions of years, where they may accumulate into a deposit that is rich enough to mine. Ice is thought to be quickly lost on surfaces that are exposed to direct sunlight, which precludes their accumulations.
The team used LRO’s Lunar Exploration Neutron Detector (LEND) instrument to detect signs of ice deposits by measuring moderate-energy, “epithermal” neutrons. Specifically, the team used LEND’s Collimated Sensor for Epithermal Neutrons (CSETN) that has a fixed 18.6-mile (30-kilometer) diameter field-of-view. Neutrons are created by high-energy galactic cosmic rays that come from powerful deep-space events such as exploding stars, that impact the lunar surface, break up regolith atoms, and scatter subatomic particles called neutrons. The neutrons, which can originate from up to about a 3.3-foot (meter’s) depth, ping-pong their way through the regolith, running into other atoms. Some get directed into space, where they can be detected by LEND. Since hydrogen is about the same mass as a neutron, a collision with hydrogen causes the neutron to lose relatively more energy than a collision with most common regolith elements. So, where hydrogen is present in regolith, its concentration creates a corresponding reduction in the observed number of moderate-energy neutrons.
“We hypothesized that if all PSRs have the same hydrogen concentration, then CSETN should proportionally detect their hydrogen concentrations as a function of their areas. So, more hydrogen should be observed towards the larger-area PSRs,” said McClanahan.
The model was developed from a theoretical study that demonstrated how similarly hydrogen-enhanced PSRs would be detected by CSETNs fixed-area field-of-view. The correlation was demonstrated using the neutron emissions from 502 PSRs with areas ranging from 1.5 square miles (4 km2) to 417 square miles (1079 km2) that contrasted against their surrounding less hydrogen-enhanced areas. The correlation was expectedly weak for the small PSRs but increased towards the larger-area PSRs.
The research was sponsored by the LRO project science team, NASA’s Goddard Space Flight Center’s Artificial Intelligence Working Group, and NASA grant award number 80GSFC21M0002. The study was conducted using NASA’s LRO Diviner radiometer and Lunar Orbiter Laser Altimeter instruments. The LEND instrument was developed by the Russian Space Agency, Roscosmos by its Space Research Institute (IKI). LEND was integrated to the LRO spacecraft at the NASA Goddard Space Flight Center. LRO is managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland, for the Science Mission Directorate at NASA Headquarters in Washington.
Share
Details
Last Updated Oct 03, 2024 Editor wasteigerwald Contact wasteigerwald william.a.steigerwald@nasa.gov Location Goddard Space Flight Center Related Terms
Earth’s Moon Lunar Reconnaissance Orbiter (LRO) Uncategorized Explore More
6 min read NASA’s LRO Discovers Lunar Hydrogen More Abundant on Moon’s Pole-Facing Slopes
Space travel is difficult and expensive – it would cost thousands of dollars to launch…
Article
10 years ago
4 min read NASA’s LRO Finds Lunar Pits Harbor Comfortable Temperatures
NASA-funded scientists have discovered shaded locations within pits on the Moon that always hover around…
Article
2 years ago
4 min read NASA’s LRO Spacecraft Captures Images of LADEE’s Impact Crater
NASA’S Lunar Reconnaissance Orbiter (LRO) spacecraft has spied a new crater on the lunar surface;…
Article
10 years ago
View the full article
-
By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA astronaut Kate Rubins takes Apollo 17 Lunar Module Pilot Harrison “Jack” Schmitt on a ride on NASA’s rover prototype at Johnson Space Center in Houston.NASA/James Blair When astronauts return to the Moon as part of NASA’s Artemis campaign, they will benefit from having a human-rated unpressurized LTV (Lunar Terrain Vehicle) that will allow them to explore more of the lunar surface, enabling diverse scientific discoveries.
As crewed Artemis missions near, engineers at NASA’s Johnson Space Center in Houston are designing an unpressurized rover prototype, known as the Ground Test Unit. The test unit will employ a flexible architecture to simulate and evaluate different rover concepts for use beginning with Artemis V.
In April 2024, as part of the Lunar Terrain Vehicle Services contract, NASA selected three vendors — Intuitive Machines, Lunar Outpost, and Venturi Astrolab — to supply rover capabilities for use by astronauts on the lunar surface. While the test unit will never go to the Moon, it will support the development of additional rover prototypes that will enable NASA and the three companies to continue making progress until one of the providers comes online. Additionally, data provided from GTU testing helps inform both NASA and the commercial companies as they continue evolving their rover designs as it serves as an engineering testbed for the LTV providers to test their technologies on crew compartment design, rover maintenance, and payload science integration, to name a few.
“The Ground Test Unit will help NASA teams on the ground, test and understand all aspects of rover operations on the lunar surface ahead of Artemis missions,” said Jeff Somers, engineering lead for the Ground Test Unit. “The GTU allows NASA to be a smart buyer, so we are able to test and evaluate rover operations while we work with the LTVS contractors and their hardware.”
Suited NASA engineers sit on the rover prototype during testing at NASA’s Johnson Space Center in Houston.NASA/Bill Stafford A suited NASA engineer sits on the agency’s rover prototype during testing at NASA’s Johnson Space Center in Houston.NASA/Bill Stafford Suited NASA engineers sit on the rover prototype during testing at NASA’s Johnson Space Center in Houston.NASA/Bill Stafford The LTVS contractors have requirements that align with the existing GTU capabilities. As with the test unit, the vendor-developed, LTV should support up to two crewmembers, have the ability to be operated remotely, and can implement multiple control concepts such as drive modes, self-leveling, and supervised autonomy. Having a NASA prototype of the vehicle we will drive on the Moon, here on Earth, allows many teams to test capabilities while also getting hands-on engineering experience developing rover hardware.
NASA has built some next generation rover concept vehicles following the successes of the agency’s Apollo Lunar Roving Vehicle in the 1970s, including this iteration of the GTU. Crewed test vehicles here on Earth like the GTU help NASA learn new ways that astronauts can live and work safely and productively on the Moon, and one day on the surface of Mars. As vendor designs evolve, the contracted LTV as well as the GTU allow for testing before missions head to the Moon. The vehicles on the ground also allow NASA to reduce some risks when it comes to adapting new technologies or specific rover design features.
Human surface mobility helps increase the exploration footprint on the lunar surface allowing each mission to conduct more research and increase the value to the scientific community. Through Artemis, NASA will send astronauts – including the first woman, first person of color, and its first international partner astronaut – to explore the Moon for scientific discovery, technology evolution, economic benefits, and to build the foundation for future crewed missions to Mars.
Learn about the rovers, suits, and tools that will help Artemis astronauts to explore more of the Moon:
https://go.nasa.gov/3MnEfrB
Share
Details
Last Updated Oct 02, 2024 Related Terms
Humans in Space Artemis Artemis 5 Exploration Systems Development Mission Directorate Johnson Space Center xEVA & Human Surface Mobility Explore More
2 min read Mariachi and Moonshots: Melissa Moreno Orchestrates Gateway Communications
Article 2 days ago 2 min read Station Science Top News: Sept. 27, 2024
Article 2 days ago 5 min read Aerospace Medicine Clerkship
Article 2 days ago Keep Exploring Discover More Topics From NASA
Space Launch System (SLS)
Orion Spacecraft
Human Landing System
Commercial Space
View the full article
-
By NASA
NASA has selected Intuitive Machines of Houston and Aalyria Technologies Inc. of Livermore, California, to perform capability studies with the goal of advancing space communications and exploration technologies. These studies will allow NASA to gain insights into industry capabilities and innovations to facilitate NASA partnerships with commercial communications and navigation providers.
The awards, under the Next Space Technologies for Exploration Partnerships-2 (Next STEP-2) Broad Agency Announcement (BAA) Appendix Q, are firm fixed-price milestone-based contracts.
Intuitive Machines is awarded $647,600 — Study Area No. 1, Lunar User Terminals and Network Orchestration — to conduct state-of-the-art studies and demonstrations for a dual-purpose navigation and communication lunar surface user terminal. The terminal will support lunar surface exploration planning and ensure interoperability with future LunaNet compatible service providers working in partnership with NASA, ESA (European Space Agency), and other space agencies.
Aalyria Technologies is awarded $393,004 — Study Area No. 2, Network Orchestration and Management System (NOMS) — to provide NASA with insights on advanced Network Orchestration and Management Systems that effectively address NASA’s need to integrate into multiple commercial and government communication service providers supporting the Near Space Network.
NASA’s Near Space Network is managed by the agency’s Goddard Space Flight Center in Greenbelt, Maryland, under the direction of the agency’s SCaN (Space Communications and Navigation) program office within the Space Operations Mission Directorate at NASA Headquarters in Washington. The Near Space Network provides NASA missions with robust communications services through an interoperable architecture composed of a mixture of existing NASA and commercial services.
“These awards are part of NASA’s continuing effort to build commercial partnerships to help support increasingly sophisticated and high-demand space missions,” said Greg Heckler, new capability lead for the SCaN Program at NASA Headquarters in Washington. “Seamless interoperability across networks, from here on Earth to cislunar space, is an essential element of SCaN’s emerging ‘one network’ approach. These awards will move us one step closer to realizing that future.”
The innovative studies delivered by industry through the Next Space Technologies for Exploration (NextSTEP) – 2 Omnibus Broad Agency Announcement vehicle bolster the agency’s goal to create a reliable, robust, and cost-effective set of commercial services in which NASA is one of many customers.
Learn more about the NextSTEP public-private partnership model at:
https://www.nasa.gov/nextstep
-end-
Jeremy Eggers
Goddard Space Flight Center, Greenbelt, Md.
757-824-2958
jeremy.l.eggers@nasa.gov
View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.