Now showing items 1-10 of 30
The need for laboratory work to aid in the understanding of exoplanetary atmospheres
(Nexus for Exoplanet System Science (NExSS), 2016-02-23) - Working or discussion paper,
Advancements in our understanding of exoplanetary atmospheres, from massive gas giants down to rocky worlds, depend on the constructive challenges between observations and models. We are now on a clear trajectory for ...
Modeling the Signature of Sulfur Mass-Independent Fractionation produced in the Archean Atmosphere
(2014-09-15) - Journal article,
Minor sulfur isotope anomalies indicate the absence of O2 from the Archean atmosphere. A rich dataset showing large variations in magnitude and sign of Δ33S and Δ36S, preserved in both sulfates and sulfides, suggests that ...
Abiotic ozone and oxygen in atmospheres similar to prebiotic earth
(2014-09-10) - Journal article,
The search for life on planets outside our solar system will use spectroscopic identification of atmospheric biosignatures. The most robust remotely detectable potential biosignature is considered to be the detection 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, ...
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 ...
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 ...
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 ...
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.
The MUSCLES Treasury Survey. I. Motivation and overview
(2016-03-22) - Journal article,
Ground- and space-based planet searches employing radial velocity techniques and transit photometry have detected thousands of planet-hosting stars in the Milky Way. With so many planets discovered, the next step toward ...
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. ...