A. D. Morse
A5025651975- Astro and Planetary Science
- Planetary Science and Exploration
- Isotope Analysis in Ecology
- Spacecraft and Cryogenic Technologies
- Mass Spectrometry Techniques and Applications
- Space Exploration and Technology
- Stellar, planetary, and galactic studies
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- High-pressure geophysics and materials
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Atmospheric Ozone and Climate
- Space Science and Extraterrestrial Life
- Scientific Research and Discoveries
- Ion-surface interactions and analysis
- Spacecraft Design and Technology
- Space exploration and regulation
- Geology and Paleoclimatology Research
- Radioactive Decay and Measurement Techniques
- Groundwater and Isotope Geochemistry
- Atomic and Molecular Physics
- Analytical Chemistry and Chromatography
- Nanoparticle-Based Drug Delivery
- Surfactants and Colloidal Systems
The Open University
2011-2024
Hong Kong Metropolitan University
2006-2014
University of Nottingham
2011
University of Guelph
2009
The ESA Rosetta spacecraft followed comet 67P at a close distance for more than 2 yr. In addition, it deployed the lander Philae on to surface of comet. (surface) composition is great interest understand origin and evolution comets. By combining measurements made itself in coma, we probe nature this material compare remote sensing observations. We data from double focusing mass spectrometer (DFMS) ROSINA experiment ESA's mission previously published two spectrometers COSAC (COmetary Sampling...
The surface and subsurface of comets preserve material from the formation solar system. properties cometary thus provide insight into physical chemical conditions during their formation. We present mass spectra taken by Ptolemy instrument 20 minutes after initial touchdown Philae lander on comet 67P/Churyumov-Gerasimenko. Regular distributions indicate presence a sequence compounds with additional -CH2- -O- groups (mass/charge ratios 14 16, respectively). Similarities detected coma species...
TandEM was proposed as an L-class (large) mission in response to ESA's Cosmic Vision 2015–2025 Call, and accepted for further studies, with the goal of exploring Titan Enceladus. The concept is perform situ investigations two worlds tied together by location properties, whose remarkable natures have been partly revealed ongoing Cassini–Huygens mission. These bodies still hold mysteries requiring a complete exploration using variety vehicles instruments. ambitious because its targets are most...
Identifying the best technique for extracting water ice deposits in permanently shadowed regions at lunar poles will be crucial determining how successful a long-term or permanent settlement these locations future scientific and technology missions. This study uses low-power microwave heating method to extract from icy simulants. Samples of highland mare simulants different contents (3–15 wt %) were heated using 250 W, 2.45 GHz microwaves. A maximum 67 ± 5% [2SD] was extracted during runs 25...
PROSPECT is a comprehensive payload package developed by the European Space Agency which will support extraction and analysis of lunar surface subsurface samples as well acquisition data from additional environmental sensors. The key elements are ProSEED drill ProSPA analytical laboratory. cryogenic depths up to 1 m deliver them instrument. receive seal in miniaturized ovens, heat them, physically chemically process released volatiles, analyze obtained constituents via mass spectrometry...
Abstract The Peregrine Ion Trap Mass Spectrometer (PITMS) was a mass spectrometer designed to measure lunar gases. PITMS flew on the first flight of Astrobotic’s lander via Commercial Lunar Payload Services (CLPS) program in 2024 January. After launch, suffered propulsion system anomaly that prevented mission from reaching Moon, but collected 80 high-quality spectra while cislunar space. observed abundant outgassing products lander, including water, MON-25 oxidizer leak, and traces...
In situ resource utilisation (ISRU) refers to the extraction and use of local materials, numerous ISRU techniques have been proposed for on Moon. Hydrogen reduction iron oxide-bearing minerals in lunar regolith, such as ilmenite, has long suggested a potential method producing water Moon support exploration. Generally, regolith tested gas-flowing systems which utilise pumps re-circulate gases (herein described dynamic systems), trialled terrestrial laboratory simulated environments. However,...
Research Article| December 01, 2023 Lunar Resources Ian A. Crawford; Crawford Dept. of Earth and Planetary Sciences, Birkbeck College, University London, UKCentre for Sciences at UCL/Birkbeck, UK i.crawford@bbk.ac.uk Search other works by this author on: GSW Google Scholar Mahesh Anand; Anand Space School Physical The Open University, UKDept. Science, Natural History Museum, mahesh.anand@open.ac.uk Simeon Barber; Barber Aidan Cowley; Cowley European Agency, Astronaut Centre, Linder Höhe,...
Abstract In May 2014, the Rosetta spacecraft is scheduled to rendezvous with comet Churyumov–Gerasimenko (‘67P’). One of instruments on board ‘Lander’ which will descend surface a miniaturised GC/MS system that incorporates an ion trap mass spectrometer, specially developed for isotope ratio analysis. This article describes development and optimisation this unique application, presents summary range pre‐programmed experiments contribute characterisation solid volatile cometary materials....
We describe Castalia, a proposed mission to rendezvous with Main Belt Comet (MBC), 133P/Elst-Pizarro. MBCs are recently discovered population of apparently icy bodies within the main asteroid belt between Mars and Jupiter, which may represent remnants supplied early Earth water. Castalia will perform first exploration this by characterising 133P in detail, solving puzzle MBC's activity, making situ measurements water belt. In many ways successor ESA's highly successful Rosetta mission, allow...
Abstract— In order to investigate the relative importance of dry metamorphism and aqueous alteration in history chondrules, chondrules were hand‐picked from Semarkona (petrographic type 3.0), Bishunpur (3.1), Chainpur (3.4), Dhajala (3.8) Allegan (5) chondrites, matrix samples extracted first three ordinary chondrites. The thermoluminescence (TL) properties all measured, appropriate subsets analyzed by electron‐microprobe radiochemical neutron activation water H‐isotopic composition...
Comets are generally considered to contain the best-preserved material from beginning of our planetary system, although mechanism their formation and subsequent evolution still poorly understood. Here we report direct in situ measurement H2O, CO, CO2 by Ptolemy mass spectrometer onboard Philae lander, part European Space Agency's Rosetta mission, at Abydos site Jupiter-family comet 67P/Churyumov-Gerasimenko. A CO/CO2 ratio around 0.07 ± 0.04 is found surface comet, a value substantially...
Abstract— A set of cristobalite‐ and tridymite‐rich igneous clasts (CB1 to CB8) have been found in Parnallee (LL3.6). They consist clinoenstatite, minor feldspathic mesostasis cristobalite veined by endiopsideaugite. The largest clast, CB8, is 1.6 cm diameter contains tridymite cristobalite, clinoenstatite (zoned ferroaugite pyroxferroite Fs 75.6 Wo 20.0 ) plagioclase. Compared bulk ordinary chondrites (OC), the are depleted Al (0.02–0.8× OC), Na K enriched Si (1.6–2.0× OC) Ca (1.3–4.5× OC)....
On 2014 November 12, the ESA/Rosetta descent module Philae landed on Abydos site of comet 67P/Churyumov–Gerasimenko. Aboard this module, Ptolemy mass spectrometer measured a CO/CO2 ratio 0.07 ± 0.04, which differs substantially from value obtained in coma by Rosetta/ROSINA instrument, suggesting heterogeneity nucleus. To understand difference, we investigated physicochemical properties subsurface, leading to ratios close that observed at surface region. We used nucleus model takes into...
Abstract The Peregrine Ion Trap Mass Spectrometer (PITMS) is a mass spectrometer instrument that operated during the Astrobotic Mission-1 as part of NASA Commercial Lunar Payload Services initiative. This paper describes and investigation design, development, planning conducted by PITMS team, consisting successful partnership between Goddard Space Flight Center (GSFC), Open University, NASA, ESA. was designed to measure abundance temporal variability volatile species in near-surface lunar...
Abstract— Roosevelt County (RC) 075 was recovered in 1990 as a single 258‐gram stone. Classification of this meteorite is complicated by its highly unequilibrated nature and severe terrestrial weathering, but we favor H classification. This supported O isotopes estimates the original Fe, Ni metal content. The isotopic composition similar to that number reduced ordinary chondrites ( e.g ., Cerro los Calvos, Willaroy), although RC exhibits no evidence mineral compositions. Chondrule diameters...