Now showing items 1-10 of 14
The PanCam instrument for the ExoMars rover
(2017-07-01) - Journal article
The scientific objectives of the ExoMars rover are designed to answer several key questions in the search for life on Mars. In particular, the unique subsurface drill will address some of these, such as the possible existence ...
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. ...
Water-planets in the habitable zone: atmospheric chemistry, observable features, and the case of kepler-62e and -62f
(2013-10-01) - Journal article
Planets composed of large quantities of water that reside in the habitable zone are expected to have distinct geophysics and geochemistry of their surfaces and atmospheres. We explore these properties motivated by two key ...
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 ...
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 ...
Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets
(2014-02-19) - Journal article
We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like ...
Anoxic atmospheres on Mars driven by volcanism : implications for past environments and life
(2017-07-01) - Journal article
Mars today has no active volcanism and its atmosphere is oxidizing, dominated by the photochemistry of CO2 and H2O. Mars experienced widespread volcanism in the past and volcanic emissions should have included reducing ...
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 ...
Volcanogenic Fluvial-lacustrine environments in Iceland and their utility for identifying past habitability on Mars
(2015-02-16) - Journal article
The search for once-habitable locations on Mars is increasingly focused on environments dominated by fluvial and lacustrine processes, such as those investigated by the Mars Science Laboratory Curiosity rover. The availability ...