Now showing items 1-10 of 30
Modeling pN2 through geological time : implications for planetary climates and atmospheric biosignatures
(2016-12-01) - Journal article,
Nitrogen is a major nutrient for all life on Earth and could plausibly play a similar role in extraterrestrial biospheres. The major reservoir of nitrogen at Earth's surface is atmospheric N2, but recent studies have ...
Remote detection of past habitability at Mars-analogue hydrothermal alteration terrains using an ExoMars Panoramic Camera emulator
(2015-05-15) - Journal article,
A major scientific goal of the European Space Agency’s ExoMars 2018 rover is to identify evidence of life within the martian rock record. Key to this objective is the remote detection of geological substrates that are ...
Plausible microbial metabolisms on Mars
(2013) - Journal article,
Sophie L Nixon, Claire R Cousins and Charles S Cockell explore the possible ways in which any Martian life could get energy.
Planetary science and exploration in the deep subsurface : results from the MINAR Program, Boulby Mine, UK
(2017-04) - Journal article,
The subsurface exploration of other planetary bodies can be used to unravel their geological history and assess their habitability. On Mars in particular, present-day habitable conditions may be restricted to the subsurface. ...
Mars surface context cameras past, present, and future
(2016-04) - Journal item,
Mars has been the focus of robotic space exploration since the 1960s, in which time there have been over 40 missions, some successful, some not. Camera systems have been a core component of all instrument payloads sent to ...
Are thermophilic microorganisms active in cold environments?
(2015-07) - Journal article,
The mean air temperature of the Icelandic interior is below 10 °C. However, we have previously observed 16S rDNA sequences associated with thermophilic lineages in Icelandic basalts. Measurements of the temperatures of ...
Volcano – Ice Interaction as a Microbial Habitat on Earth and Mars
(2011-09) - Journal article,
Volcano-ice interaction has been a widespread geological process on Earth that continues to occur to the present day. The interaction between volcanic activity and ice can generate substantial quantities of liquid water, ...
Volcano – Ice Interaction: A Haven for Life on Mars?
(2011) - Journal article,
Using biogenic sulfur gases as remotely detectable biosignatures on anoxic planets
(2011-06-27) - Journal article,
We used one-dimensional photochemical and radiative transfer models to study the potential of organic sulfur compounds (CS2, OCS, CH3SH, CH3SCH3, and CH3S2CH3) to act as remotely detectable biosignatures in anoxic exoplanetary ...
Habitable Zone Lifetime of Exoplanets around Main Sequence Stars
(2013-09-18) - Journal article,
The potential habitability of newly discovered exoplanets is initially assessed by determining whether their orbits fall within the circumstellar habitable zone of their star. However, the habitable zone (HZ) is not static ...