The climate of early Mars remains a topic of intense debate. Ancient terrains preserve
landscapes consistent with stream channels, lake basins and possibly even oceans, and …

Early Mars climate research has well-defined goals (MEPAG 2018). Achieving these goals
requires geologists and climate modelers to coordinate. Coordination is easier if results are …

The Perseverance rover landed in Jezero crater, Mars, in February 2021. We used the
Scanning Habitable Environments with Raman and Luminescence for Organics and …

Noachian-aged Jezero crater is the only known location on Mars where clear orbital
detections of carbonates are found in close proximity to clear fluvio-lacustrine features …

Geological evidence shows that ancient Mars had large volumes of liquid water. Models of
past hydrogen escape to space, calibrated with observations of the current escape rate …

Obtaining carbon isotopic information for organic carbon from Martian sediments has long
been a goal of planetary science, as it has the potential to elucidate the origin of such …

Reconciling the geology of Mars with models of atmospheric evolution remains a major
challenge. Martian geology is characterized by past evidence for episodic surface liquid …

The evidence for abundant liquid water on early Mars despite the faint young Sun is a long‐
standing problem in planetary research. Here we present new ab initio spectroscopic and …

The history of Mars' atmosphere is important for understanding the geological evolution and
potential habitability of the planet. We determine the amount of gas lost to space through …

The habitability of the surface of any planet is determined by a complex evolution of its
interior, surface, and atmosphere. The electromagnetic and particle radiation of stars drive …