… We conclude that (1) if rainfall occurred on early Mars, … throughout the Noachian, and (2)
in contrast to previous findings, … the geomorphic evidence for rainfall in the Noachian and the …

… years, although geomorphic evidence of the volcanism during these early times has been …
is evidence that Tharsis had mostly accumulated by the end of the Noachian, 3.7 Gyr ago (see …

… Noachian and early Hesperian periods 3–4 Ga. The low solar flux received by Mars in its
first … highlights of the geologic evidence for an altered climate on early Mars, focusing on the …

… later in Mars history: a 60% (H) and 72% (N) chance of at least one crater 750 km or larger
since the Noachian/… are predominantly in Noachian terrains, evidence that demonstrates that …

… with older crater rims and Early Noachian impact-… evidence for a thick, widespread eolian
mantle in the study areas. The Mountain, Intercrater 1, and Intercrater 2 units show no evidence …

… from Mars over time is supported by both geomorphic evidence for a wetter surface on early
Mars and isotopic evidence for … We first generate a simplified scenario for the evolution of the …

… Many lines of evidence indicate that Noachian Mars was warmer … Older Noachian craters
are much more degraded with … used to constrain the early hydrologic cycle on Mars in this study…

… (2) There is no single Early Mars climate problem: the traces of … formed earlier in Mars
history, rivers that formed later in Mars … This first river-forming period (Early/Middle Noachian) is …

… Evidence of several types suggests that there was a period … late Noachian or early Hesperian,
and there is good evidence … Noachian or in the early Hesperian than it was earlier or later. …

… in the earliest geological evolution of Mars (Early perhaps into Middle Noachian) requires
… Although as of this writing, there is no definitive evidence for ancient martian plate tectonism…