Artemis & Lunar Exploration – Page 10 – My WordPress Site

GP model fit to the RV data. Left panel shows the entire RV time series in black and the GP model in blue, with residuals plotted in the lower panel, to demonstrate that a quasiperiodic GP model was able to capture the long-period variation caused by the stellar magnetic cycle. The gray shaded region is shown in the right panel. The right panel shows the same model and data over a centrally located 60 day baseline, to highlight the effects of the 9.42 day stellar rotation period. -- astro-ph.EP

Analog Studies, Artemis & Lunar Exploration, Away Teams & Field Reports, Caves, Craters, Mountains & Lava Tubes, Education and Outreach, Exploration Gear & Tech, Missions & Hardware, Polar / Alpine Expeditions, Reports, Roadmaps, & Plans

Expeditionary Astronauts Wanted

by Keith CowingMay 23, 2019January 31, 2024

Dissimilarity analysis of evenness curves of amino acid assemblages. (a): Multidimensional Scaling (MDS) projection of dissimilarities between evenness curves, E(q). Points represent samples; distances between samples grow with dissimilarity. Edges connect samples to the 25th percentile of their nearest neighbors. Markers indicate inferred origin: biotic (green hexagons), abiotic (pink circles), and mixed (blue diamonds). (b): Evenness curve distributions of four distinct sample groups. Solid lines represent mean values, and filled areas represent the one standard deviation interval. (c): Predictive power of a sample’s origin through k-Nearest-Neighbors (kNN) classification, applied to pairwise distances between samples projected onto two MDS axes. Accuracy is quantified using a normalized Matthews Correlation Coefficient (MCC), where 50% corresponds to random assignment and 100% indicates perfect classification. Uncertainty was estimated using multiple initializations of the MDS projection. -- astro-ph.EP

Artemis & Lunar Exploration, Astrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains & Lava Tubes, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Missions & Hardware, Moon

NASA Lunar Reconnaissance Orbiter Reveals Ice Content in Shackleton Crater on the Moon

by Keith CowingJune 20, 2012June 13, 2024

Credit: R. Lockwood Larger image

Artemis & Lunar Exploration, Astrochemistry, Astrogeology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Impact events, Mapping, Geodesy, Cartography, Moon

Caltech Team Finds Evidence of Water in Moon Minerals

by Keith CowingJuly 21, 2010June 13, 2024

ESA/NASA Rosalind Franklin rover -- ESA

Artemis & Lunar Exploration, Away Teams & Field Reports, Moon, Polar / Alpine Expeditions, Space Stations

Playing With Moon Rocks and Duct Tape at the Dinner Table

by Keith CowingAugust 11, 2009April 14, 2024