An international team of planetary scientists has detected patches of water frost sitting atop the Tharsis volcanoes on Mars, which are not only the tallest volcanic mountains on the Red […]
Mesospheric CO2 clouds are one of two types of carbon dioxide clouds known on Mars. We present observations of mesospheric CO2 clouds made by Atmospheric Chemistry Suit (ACS) onboard the […]
A recent paper may help explain why a portable chemistry lab on NASA’s Curiosity rover has continually sniffed out traces of the gas near the surface of Gale Crater.
A team of European scientists have published the most detailed geological map of Oxia Planum – the landing site for ESA’s Rosalind Franklin rover on Mars. This thorough look at […]
Editor’s note: This Astrobiology Fleet chart was shown by David Grinspoon and Shawn Domagal-Goldman on 22 Mar 2024 at an AAS Goddard Memorial Science Meeting. It is rather incomplete and […]
![An illustration of the anticorrelation between the HCl abundance and water ice from a single observation (Panels A, B, and C) and from all “HCl in ice-holes'' cases (Panel D). Panel A. The aerosol extinction profiles at 3.09-3.46 μm (water ice band, yellow and red) and 0.76-1.6 μm (aerosol continuum, green and blue) measured by MIR and NIR, respectively. Panel B: Retrieved aerosol mass loading profiles of dust (red) and water ice (blue), bottom axes; temperature profile with uncertainties retrieved from NIR data (Fedorova et al., 2023), orange area and top axes. Panel C: volume mixing ratio of HCl (black lines and bottom axes) and H2O (blue lines and top axes) retrieved from MIR and NIR, respectively. Panel D: profiles of HCl VMR (black lines) and aerosol extinction at 3.1 μm (blue lines) normalized to [0, 1] and shifted to align all HCl maxima at 45 km; mean profiles are shown in bold. Error bars of the experimental data correspond to 1−σ uncertainty level. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/12/AnEvidenceOf.png?resize=1200%2C719&ssl=1)
In 2020, hydrogen chloride (HCl) in the gas phase was discovered in the atmosphere of Mars with the Atmospheric Chemistry Suite (ACS) onboard the Trace Gas Orbiter (TGO) mission (Korablev […]
The ExoMars Trace Gas Orbiter (TGO) has revealed how oddly ‘light’ carbon monoxide forms in Mars’ atmosphere. The finding paints a better picture of how carbon-containing matter formed on the […]
The middle infrared (MIR) channel of the Atmospheric Chemistry Suite (ACS) instrument onboard the ExoMars Trace Gas Orbiter (TGO) ESA-Roscosmos mission has performed Solar occultation measurements of the Martian atmosphere […]
