Sinuous collapse chains and skylights in lunar and Martian volcanic regions have often
been interpreted as collapsed lava tubes (also known as pyroducts). This hypothesis has …

Fungi thrive in radiation intense environments. Sequential photos document that fungus-like
Martian specimens emerge from the soil and increase in size, including those resembling …

Mars has been subject to repeated waxing and waning episodes of extreme chaotic
obliquity (axial tilting) for at least four billion years. Obliquity is currently at 25.19 degrees …

A geomorphologic map is an important step to understanding the geologic context and
history of a site; here, we present an initial geomorphologic map for an area spanning 22° …

Terrestrial analogue sites have been crucial for studying Martian geology and mineralogy,
integrating the direct evidence available from Mars through remote sensing and in situ …

There is life on Mars as documented with 100 comparative photos. This evidence includes
pigmented/melanized fungi and lichens, fungi shedding crustose and secreting calcium …

The formation of layered mounds on Mars remains a major topic of debate, with the
relationship between their deposition and chemical alteration a major aspect still to be …

An extensive distribution of water‐altered equatorial layered deposits (ELDs) characterizes
the densely cratered terrain of Arabia Terra (AT), Mars. The majority of these deposits reside …

Martian geomorphology and surface features provide links to understanding past geologic
processes such as fluid movement, local and regional tectonics, and feature formation …

A multidisciplinary study of an ancient area of Mars (Early to Late Noachian) located in
Arabia Terra is presented, centred at 6° 1′ N, 354° 54′ E and including the 55​ km size …