Two >130-meter-diameter impact craters formed on Mars during the later half of 2021. These are the two largest fresh impact craters discovered by the Mars Reconnaissance Orbiter since operations started 16 years ago. The impacts created two of the largest seismic events (magnitudes greater than 4) recorded by InSight during its 3-year mission.
View Article and Find Full Text PDFJ Geophys Res Planets
June 2022
We present a reanalysis (using the Minnaert limb-darkening approximation) of visible/near-infrared (0.3-2.5 μm) observations of Uranus and Neptune made by several instruments.
View Article and Find Full Text PDFExisting observations of Uranus and Neptune's fundamental physical properties can be fitted with a wide range of interior models. A key parameter in these models is the bulk rock:ice ratio and models broadly fall into ice-dominated (ice giant) and rock-dominated (rock giant) categories. Here we consider how observations of Neptune's atmospheric temperature and composition (H, He, D/H, CO, CH, HO and CS) can provide further constraints.
View Article and Find Full Text PDFThe surname of author Cathy Quantin-Nataf was misspelled 'Quantin-Nata' , authors Ehouarn Millour and Roland Young were missing from the ACS Science Team list, and minor changes have been made to the author and affiliation lists; see accompanying Amendment. These errors have been corrected online.
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