Mars' ultraviolet dayglow has been used to study its upper atmosphere for over four decades. Identifying variations in emission features provided information on composition, density, and temperature. The Emirates Mars Ultraviolet Spectrometer onboard the Mission observes at Far Extreme UV wavelengths. Variations disk are studied, with a focus O I 130.4, CO Fourth Positive Group C 156.1 nm. All ...

Context. The fast solar wind is known to emanate from polar coronal holes. Aims. This Letter reports the first estimate of expansion rate flows performed by Metis coronagraph on board Solar Orbiter. Methods. By exploiting simultaneous measurements in polarized white light and ultraviolet intensity neutral hydrogen Lyman- α line, it was possible extend observations outflow velocity main componen...

Radiation Risk Radiometer-Dosimeter E (R3DE) served as a device for measuring ionizing and non-ionizing radiation as well as cosmic radiation reaching biological samples located on the EXPOSE platform EXPOSE-E. The duration of the mission was almost 1.5 years (2008-2009). With four channels, R3DE detected the wavelength ranges of photosynthetically active radiation (PAR, 400-700 nm), UVA (315-4...