Tuesday / 9 May 2023

New Study Confirms Solid Core of Moon, Raises Questions on Disappearance of Magnetic Field

Utilizing Monte Carlo algorithmic modelling technique, drawing from Apollo seismic and GRAIL gravity field data, researchers at CNRS, Paris Observatory and other French institutions conclude Moon contains solid inner core ~516 km diameter with ~7,822 kg / m3, likely composed of Fe, representing ~15% relative to total size (by comparison, Earth’s inner core is ~20%); Findings concur with 2011 NASA study, and suggest mantle overturn activity as mechanism; Authors stress ramifications for ‘evolution of the Moon magnetic field’; Farside Seismic Suite to further investigate structure of Moon on Draper CLPS CP-12 mission lander NET 2025

Credits: Briaud, A., Ganino, C., Fienga, A. et al. The lunar solid inner core and the mantle overturn. Nature (2023). https://doi.org/10.1038/s41586-023-05935-7; NASA
 

Friday / 3 March 2023

Moon Time Standardization May Advance International Cislunar Communication, Navigation Capabilities

Interoperable ‘LunaNet’ communication / navigation protocol initiative will require agreement on common time on & around Moon similar to Coordinated Universal Time on Earth & Earth orbit, per ESA statement; Standard Moon time would enable NASA Lunar Communications Relay and Navigation Systems, ESA Moonlight and other nodes in Moon network to share spatial measurement as with Earth-based International Terrestrial Reference Frame used by GNSS; Nature and composition of governing organization and whether to fix Moon time to Earth time or create independent local selenocentric system TBD by lunar stakeholders

Pictured: ESA Moonlight Navigation Manager Javier Ventura-Traveset, ESA Navigation Engineer Pietro Giordano; Credits: ESA, NASA, Twitter

Friday / 13 Jan 2022

ShadowCam Mapping of Perennially Dark Regions on Moon Begins with Shackleton Crater

2,040-m wide area of the interior of Shackleton Crater (89.9°S, 0.0°E) is first light for ShadowCam instrument on Korea Pathfinder Lunar Orbiter Danuri; Based on Lunar Reconnaissance Orbiter Camera Narrow Angle Camera with 200x light-gathering ability (equivalent to an increase from ISO 100 to 12,800), ShadowCam is a product of San Diego-based company Malin Space Science Systems operated by Arizona State University for NASA; 1.7 m/pixel resolution images to aid in water ice prospecting, landing site analysis for Artemis 3 human landings NET 2025 and KARI indigenous lander mission NET 2032

Credits: KARI, NASA

Friday / 24 June 2022

NASA Adds Lunar Flashlight & Trailblazer to IM-1/2 Manifests, Studying Moon Fission

6U, 14kg JPL cubesat Lunar Flashlight, formerly to launch with Artemis 1, now riding with CLPS mission Intuitive Machines-1 scheduled for 22 Dec 2022 launch; Flashlight to scout for water ice with 4 near-IR lasers while demonstrating ‘green’ propellant AF-M315E; 200kg Lunar Trailblazer moved from IMAP rideshare NET 2025 to IM-2, scheduled for mid-2023 launch; Trailblazer to utilize HVM3 spectrometer based on M3, with sufficient resolution to identify hydroxl vs molecular water, and Lunar Thermal Mapper; IX (IM + X-Energy) teamed with Maxar & Boeing to study lunar nuclear power, receiving $5M DOE award for ~1 year study along with Lockheed Martin, Westinghouse awardees

Credits: NASA, IM, JPL, Caltech

Wednesday / 1 June 2022

Newly Named ‘Danuri’ Korea Pathfinder Lunar Orbiter on Track for 2 Aug Launch to Moon

Selected from 62,719 submissions across South Korea by a 1000-person focus group, Korea Pathfinder Lunar Orbiter, now Danuri (Moon Enjoy), set for launch on 2 Aug (19:37 EDT) to 100-km Moon orbit on SpaceX Falcon 9 via ballistic lunar transfer; 678-kg spacecraft is outfitted with 6 instruments – KARI-built Lunar Terrain Imager, Wide-Angle Polarimetric Camera, Magnetometer, Gamma-Ray Spectrometer, Disruption Tolerant Network Experiment Payload and NASA provided ShadowCam; NASA will also assist Danuri with ground station / comms / navigation support and 9-member KPLO Participating Scientist Program

Credits: KARI, NASA, SpaceX

Friday / 29 April 2022

NASA Working to Leverage Latest Commercial LIDAR Tech for Human-Carried Lunar Mapping System

Marshall Space Flight Center in Huntsville AL, partnering with Torch Technologies under NASA Early Career Initiative to develop Kinematic Navigation and Cartography Knapsack (KNaCK) device for Moon topography and live-action recording; KNaCK being designed for human use during Artemis landings, taking form as 18-kg backpack utilizing 4D (height, length, width, velocity) frequency modulated continuous wave lidar (FMCW) sensors capable of cm-level precision, supplied by Aeva of Mountain View CA

Credits: NASA, Torch Technologies, Aeva

Tuesday / 22 March 2022

LRO, Now in 13th Year of Operation, to Image Long March 3C Impact Site on Moon Far Side

First space debris to strike Moon, likely upper stage of LM-3C used to deliver Chang’e-5 T1 to lunar free return trajectory, will “use its cameras to attempt to identify the impact site”; LRO 20x165km eccentric polar selenocentric orbit is calibrated to reach perilune over the Moon South Pole (now pinpointed to “halfway between 10 and 11 o’clock” of an imaginary clock superimposed over Shackleton Crater), requiring “weeks to months” to achieve favorable conditions; Impact may be visible in Release 50C (15 June) or 51A (15 July)

 

Credits: NASA

Friday / 28 January 2022

Russia Declares 23 July Preferred Landing Date for First Lunar Mission Of Modern National Era

Luna-25 is focal point of Russia space activity as Roscosmos subsidiary NPO Lavochkin announces with great specificity 23 July 02:21:45 MSK ideal launch date / time for Luna-25 robotic lander, 24 July 02:55:49 backup; Lunar daybreak occurring 1 August at landing site north of Boguslavsky Crater (69.55°S, 43.54°E) will provide power augmentation for RTG / battery system; 30kg science payload includes laser mass spectrometer; Luna-26 orbital mapping mission to follow in 2024; Luna-27 lander to utilize ESA regolith drill / PROSPECT sensor array within South Pole-Aitken basin NET 2025

 

Credits: Roscosmos, NPO Lavochkin

Friday / 7 January 2022

MIT Researchers Investigating Electrostatic / Ion Propulsion Concept for Moon and Asteroid Exploration

With current propulsion technologies capable of operation in atmosphere-free environments limited to chemical rockets and ground-based locomotion, MIT supported by NASA is pioneering novel technique harnessing electrical charge found on such bodies via repulsive effect of Mylar; Initial experiments published in AIAA Journal of Spacecraft and Rockets suggest with micro ion booster augmentation sufficient lift to raise a 0.9kg craft 1cm can be achieved; Levitation technique would allow traversing otherwise impassable “very rough, unexplored terrain” per study co-author Paulo Lozano (B)

Also pictured: Oliver Jia-Richards (T); Credits: MIT

Weekend Edition
Fri-Mon / 10-13 Dec 2021

Awareness of Cislunar Space Logistic Importance Growing within Government and Think Tanks

As prospects of sustained operations on the Moon nears, unique orbital mechanics of Earth-Moon system draw attention of mission planners and commentators; Chang’e-5T1 service module DFH-3A currently occupies Earth-Moon Lagrange Point 2 serving as communication relay, while stable L4 and L5 will be strategic locations for necessary infrastructure such as fuel / supply depots, habitats, factories; Air Force Research Laboratory Primer on Cislunar Space suggests research on theoretical Shamrock and Aldrin cycler orbits

Credits: Paul Spudis, Aerospace Corporation, NASA