We review the origin and evolution of the atmospheres of Earth, Venus and Mars from the
time when their accreting bodies were released from the protoplanetary disk a few million …

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 …

This revised and updated edition continues to provide a comprehensive introduction to the
subject, exploring the world's landforms from a broad systems perspective. It covers the …

Glacial retreat in recent decades has exposed unstable slopes and allowed deep water to
extend beneath some of those slopes. Slope failure at the terminus of Tyndall Glacier on 17 …

Decades of research using remotely sensed data have extracted evidence for the presence
of an ocean in the northern lowlands of Mars in the Hesperian (∼ 3.3 Ga), but these claims …

To assess Mars' potential for both harboring life and providing useable resources for future
human exploration, it is of paramount importance to comprehend the water situation on the …

Widespread evidence points to the existence of an ancient Martian ocean,,,,,,,. Most
compelling are the putative ancient shorelines in the northern plains,. However, these …

The habitable zone (HZ) is the circular region around a star (s) where standing bodies of
water could exist on the surface of a rocky planet. Space missions employ the HZ to select …

The scale of groundwater upwelling on Mars, as well as its relation to sedimentary systems,
remains an ongoing debate. Several deep craters (basins) in the northern equatorial regions …

What was the nature of the Late Hesperian climate, warm and wet or cold and dry?
Formulated this way the question leads to an apparent paradox since both options seem …