Mars – Page 105 – My WordPress Site

Astrobiology (general), Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Imaging & Spectroscopy, Mars, Missions & Hardware

Mars, Like Earth, is not a Simple Planet to Understand

by Keith CowingJune 22, 2000June 23, 2024

CRIRES+ data: CCFo map for night 3, channel B, using the H2O template. The horizontal white lines represent the orbital phases of the HD 209458 b’s expected transit ingress (bottom) and egress (top). The slanted line represent HD 209458 b’s expected radial velocities, corrected from the barycentric velocities, with Vrest = 0 km·s −1 . Rest velocities lower than −25 km·s −1 and larger than +35 km·s −1 are not shown for clarity. -- astro-ph.EP

Astrogeology, Biosignatures & Paleobiology, Fossils & Paleontology, Mars, Meteorites & Asteroids

New Studies Of Martian Meteorite Launched

by Keith CowingJuly 18, 1997December 1, 2025

CRIRES+ data: CCFo map for night 3, channel B, using the H2O template. The horizontal white lines represent the orbital phases of the HD 209458 b’s expected transit ingress (bottom) and egress (top). The slanted line represent HD 209458 b’s expected radial velocities, corrected from the barycentric velocities, with Vrest = 0 km·s −1 . Rest velocities lower than −25 km·s −1 and larger than +35 km·s −1 are not shown for clarity. -- astro-ph.EP

Arctic / Antarctic / Alpine, Astrochemistry, Astrogeology, Biosignatures & Paleobiology, Fossils & Paleontology, Mars, Meteorites & Asteroids

Meteorite Yields Evidence of Primitive Life on Early Mars

by Keith CowingAugust 7, 1996November 23, 2023

Schematic structure of denitrification genes in HRV44T and their gene and protein expression levels -- iScience

Astrogeology, Biosignatures & Paleobiology, Mars, Missions & Hardware, Robotics/Rovers/UAVs

Viking 1 Examines Martian Soil

by Keith CowingFebruary 10, 1977December 23, 2023

Instellation flux as a function of planet escape velocity, in log-log scale. Based on data from the NASA Exoplanet Archive (2024) downloaded on June 30, 2024. The empirical “cosmic shoreline” and the water vapor greenhouse runaway threshold (Zahnle & Catling 2017) are shown as cyan and yellow shaded regions, respectively. Planets are categorized into terrestrial planets (magenta), sub-Neptunes (blue), Neptune-like planets (green), and gas giants (yellow) based on radius, see legend. The red rectangles represent escape velocities calculated based on HD 101581 planets’ mean estimated masses assuming Hypatia Catalog metallicity. Because only radius, but not mass, is known, we further plot light red regions covering all possible interior compositions, ranging from pure iron to pure silicates. Height of the rectangles represent uncertainties in insolation. -- astro-ph.EP

Biosignatures & Paleobiology, Imaging & Spectroscopy, Mars, Robotics/Rovers/UAVs, Tricorders & Sensors

Second Viking Oven May Have Failed

by Keith CowingJanuary 27, 1976December 23, 2023

Biosignatures & Paleobiology, Imaging & Spectroscopy, Mars, Missions & Hardware, Robotics/Rovers/UAVs, Tricorders & Sensors

Viking 2 Oven Has Failed

by Keith CowingJanuary 23, 1976December 23, 2023

This natural-color, high-resolution mosaic showing “Observation Rock” was taken by the Mastcam-Z instrument on NASA’s Perseverance as the rover climbed the western wall of Jezero Crater. The location is near an area the Perseverance science team is calling “Curtis Ridge.” NASA/JPL-Caltech/ASU/MSSS larger image

Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Mars, Missions & Hardware

Mariner 9 Orbital Study of Mars

by Keith CowingOctober 30, 1971December 23, 2023

Mars, Missions & Hardware

Mariner 9 Hopes to Answer Long Awaited Questions

by Keith CowingOctober 17, 1971December 23, 2023

Analog Studies, Arctic / Antarctic / Alpine, Mars, Missions & Hardware

Prospects For Martian Life

by Keith CowingFebruary 24, 1970December 15, 2023

Biology And The Exploration Of Mars

Astrobiology (general), Biosignatures & Paleobiology, Habitable Zones, Mars, NASA Astrobiology Program, Origin & Evolution of Life, Reports, Roadmaps, & Plans

Biology And The Exploration Of Mars

by Keith CowingMay 25, 1966May 25, 2025