Abstract The Radar Imager for Mars' Subsurface Experiment (RIMFAX) is a Ground
Penetrating Radar on the Mars 2020 mission's Perseverance rover, which is planned to land …

Methane on Mars is a topic of special interest because of its potential association with
microbial life. The variable detections of methane by the Curiosity rover, orbiters, and …

Mars accumulated and differentiated into crust, mantle and core within a few tens of millions
of years of Solar System formation. Formation of Hellas, which has been adopted as the …

A new catalog of 210 open-basin lakes (lakes with outlet valleys) fed by valley networks
shows that they are widely distributed in the Noachian uplands of Mars. In order for an outlet …

Abstract The Opportunity Mars Exploration Rover found evidence for groundwater activity in
the Meridiani Planum region of Mars, in the form of aeolian and fluvial sediments composed …

The Meridiani Planum region of Mars has been identified as a region of past aqueous
activity by a combination of orbital and in situ observations that revealed evidence for sulfate …

Volcanic outgassing is one of the main sources of volatiles for the martian atmosphere and
degassing of the martian interior potentially influenced the early martian climate. Using a …

Ancient Mars had liquid water on its surface and a CO2-rich atmosphere. Despite the
implication that massive carbonate deposits should have formed, these have not been …

Mars was warmer and wetter during the early to middle Noachian, before a hydrologic and
climatic transition in the late Noachian led to a decrease in erosion rates, a change in valley …

We have mapped 18,000+ circular mounds in a portion of southern Acidalia Planitia using
their sizes, shapes, and responses in Nighttime IR. We estimate that 40,000+ of these …