Hydrogen chloride (HCl) was recently discovered in the atmosphere of Mars by two spectrometers onboard ExoMars Trace Gas Orbiter. The reported detection made Martian Year 34 transient, present several months after global dust storm during southern summer season. Here, we full data set vertically resolved HCl detections obtained NOMAD instrument, which covers also year 35. We show that particula...

Recurring Slope Lineae (RSL) are narrow, dark streaks typically lengthening down Martian steep slopes during warm seasons, fading the cold ones and regularly recurring every year. Their origin is still debated. Although initially interpreted as possible flows of seeping water, either coming from a subsurface aquifer or through atmospheric processes, recent studies favor dry granular flow origin...

Slope streaks are albedo features that form frequently on equatorial Martian slopes. Most slope dark relative to surrounding terrains, a minor fraction is bright, and there rare transitioning exhibit contrast reversal partway downslope. Their formation mechanisms physical surface properties not well understood. New observations acquired by the Colour Stereo Surface Imaging System (CaSSIS) board...

We present an in-flight straylight removal method for the Ultraviolet and Visible Spectrometer (UVIS) channel of Nadir Occultation Mars Discovery (NOMAD) instrument aboard ExoMars Trace Gas Orbiter (TGO). The presence a ‘red-leak’ signal in UVIS was discovered post-launch ground calibration measurements spectral lamps; observations lamps with negligible UV light emission (RS12) showed significa...

The detection of sulphur species in the Martian atmosphere would be a strong indicator volcanic outgassing from surface Mars. We wish to establish presence SO2, H2S, or OCS determine upper limits on their concentration absence detection. perform comprehensive analysis solar occultation data mid-infrared channel Atmospheric Chemistry Suite instrument, board ExoMars Trace Gas Orbiter, obtained du...

The southern polar area of Mars is home to various seasonal activity commonly explained by the Kieffer model. During spring, ice covering sublimates and leaves distinct features (spiders, spots, fans) observable from orbit. Colour Stereo Surface Imaging System (CaSSIS) onboard ExoMars Trace Gas Orbiter (TGO), provides high-resolution multi-filter images Martian surface offering high sensitivity...

Introducción. Hasta un 12% de los pacientes hospitalizados con infección por SARS-CoV-2 pueden presentar una lesión miocárdica aguda como síndrome coronario agudo (SICA), miocarditis, insuficiencia cardíaca, hipotensión y sepsis. Reporte caso. Masculino 47 años edad el cual presentó cuadro inicio progresivo caracterizado astenia, adinamia, fiebre 38.3°C, dolor torácico inespecífico, tos, hipoxe...

The Ultraviolet and VIsible Spectrometer (UVIS), covering the 200–650 ​nm range, is one of three spectrometers that comprise NOMAD instrument on ExoMars 2016 Trace Gas Orbiter (TGO). UVIS can operate in solar occultation, nadir limb viewing mode was designed to monitor ozone aerosols Martian atmosphere. Here, we describe calibration procedure convert raw data into a calibrated product ready for...