Search Results - "McKay, Christopher P"

Requirements and limits for life in the context of exoplanets by McKay, Christopher P.

“…The requirements for life on Earth, its elemental composition, and its environmental limits provide a way to assess the habitability of exoplanets. Temperature…”
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Meteorological data from Badwater, Death Valley National Park 1998 to 2019 by McKay, Christopher P.

“…We installed a meteorological recording system at Badwater (elev. −75 m), the lowest point in Death Valley, California and recorded data over the period…”
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Nearing the cold-arid limits of microbial life in permafrost of an upper dry valley, Antarctica by Goordial, Jacqueline, Davila, Alfonso, Lacelle, Denis, Pollard, Wayne, Marinova, Margarita M, Greer, Charles W, DiRuggiero, Jocelyn, McKay, Christopher P, Whyte, Lyle G

“…Some of the coldest and driest permafrost soils on Earth are located in the high-elevation McMurdo Dry Valleys (MDVs) of Antarctica, but little is known about…”
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Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars by Navarro-González, Rafael, Vargas, Edgar, de la Rosa, José, Raga, Alejandro C., McKay, Christopher P.

“…The most comprehensive search for organics in the Martian soil was performed by the Viking Landers. Martian soil was subjected to a thermal volatilization…”
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Vapor flux induced by temperature gradient is responsible for providing liquid water to hypoliths by Kidron, Giora J., Kronenfeld, Rafael, Xiao, Bo, Starinsky, Abraham, McKay, Christopher P., Or, Dani

“…Commonly comprised of cyanobacteria, algae, bacteria and fungi, hypolithic communities inhabit the underside of cobblestones and pebbles in diverse desert…”
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Stochastic and deterministic processes interact in the assembly of desert microbial communities on a global scale by Caruso, Tancredi, Chan, Yuki, Lacap, Donnabella C, Lau, Maggie C Y, McKay, Christopher P, Pointing, Stephen B

“…Extreme arid regions in the worlds' major deserts are typified by quartz pavement terrain. Cryptic hypolithic communities colonize the ventral surface of…”
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Follow the plume: the habitability of Enceladus by McKay, Christopher P, Anbar, Ariel D, Porco, Carolyn, Tsou, Peter

“…The astrobiological exploration of other worlds in our Solar System is moving from initial exploration to more focused astrobiology missions. In this context,…”
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Water sources and composition of dissolved gases and bubbles in a saline high Arctic spring by Andersen, Dale T, McKay, Christopher P, Pollard, Wayne H, Marinova, Margarita M

“…We investigate the water sources for a perennial spring, "Little Black Pond," located at Expedition Fiord, Axel Heiberg Island in the Canadian High Arctic…”
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The nitrate/(per)chlorate relationship on Mars by Stern, Jennifer C., Sutter, Brad, Jackson, W. Andrew, Navarro‐González, Rafael, McKay, Christopher P., Ming, Douglas W., Archer, P. Douglas, Mahaffy, Paul R.

“…Nitrate was recently detected in Gale Crater sediments on Mars at abundances up to ~600 mg/kg, confirming predictions of its presence at abundances consistent…”
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Microbial life at −13 °C in the brine of an ice-sealed Antarctic lake by Murray, Alison E, Kenig, Fabien, Fritsen, Christian H, McKay, Christopher P, Cawley, Kaelin M, Edwards, Ross, Kuhn, Emanuele, McKnight, Diane M, Ostrom, Nathaniel E, Peng, Vivian, Ponce, Adrian, Priscu, John C, Samarkin, Vladimir, Townsend, Ashley T, Wagh, Protima, Young, Seth A, Yung, Pung To, Doran, Peter T

“…The permanent ice cover of Lake Vida (Antarctica) encapsulates an extreme cryogenic brine ecosystem (−13 °C; salinity, 200). This aphotic ecosystem is anoxic…”
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Titan as the Abode of Life by McKay, Christopher P

“…Titan is the only world we know, other than Earth, that has a liquid on its surface. It also has a thick atmosphere composed of nitrogen and methane with a…”
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Chance and necessity in biochemistry: implications for the search for extraterrestrial biomarkers in Earth-like environments by Davila, Alfonso F, McKay, Christopher P

“…In this paper, we examine a restricted subset of the question of possible alien biochemistries. That is, we look into how different life might be if it emerged…”
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Optical constants of Titan tholins at mid-infrared wavelengths (2.5–25μm) and the possible chemical nature of Titan’s haze particles by Imanaka, Hiroshi, Cruikshank, Dale P., Khare, Bishun N., McKay, Christopher P.

“…► Laboratory analogs of Titan aerosols are generated with cold plasma irradiation. ► The optical constants of Titan aerosol analogs at mid-IR wavelengths are…”
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The Enceladus Orbilander Mission Concept: Balancing Return and Resources in the Search for Life by MacKenzie, Shannon M., Neveu, Marc, Davila, Alfonso F., Lunine, Jonathan I., Craft, Kathleen L., Cable, Morgan L., Phillips-Lander, Charity M., Hofgartner, Jason D., Eigenbrode, Jennifer L., Waite, J. Hunter, Glein, Christopher R., Gold, Robert, Greenauer, Peter J., Kirby, Karen, Bradburne, Christopher, Kounaves, Samuel P., Malaska, Michael J., Postberg, Frank, Patterson, G. Wesley, Porco, Carolyn, Núñez, Jorge I., German, Chris, Huber, Julie A., McKay, Christopher P., de Vera, Jean-Pierre, Brucato, John Robert, Spilker, Linda J.

“…Enceladus’s long-lived plume of ice grains and water vapor makes accessing oceanic material readily achievable from orbit (around Saturn or Enceladus) and from…”
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Molecular characterization of bacteria from permafrost of the Taylor Valley, Antarctica by Bakermans, Corien, Skidmore, Mark L., Douglas, Susanne, McKay, Christopher P.

“…Abstract While bacterial communities from McMurdo Dry Valley soils have been studied using molecular techniques, data from permafrost are particularly scarce…”
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Organic Haze on Titan and the Early Earth by Trainer, Melissa G., Pavlov, Alexander A., DeWitt, H. Langley, Jimenez, Jose L., McKay, Christopher P., Toon, Owen B., Tolbert, Margaret A.

“…Recent exploration by the Cassini/Huygens mission has stimulated a great deal of interest in Saturn's moon, Titan. One of Titan's most captivating features is…”
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Abiotic nitrous oxide emission from the hypersaline Don Juan Pond in Antarctica by Joye, Samantha B, Samarkin, Vladimir A, Madigan, Michael T, Bowles, Marshall W, Casciotti, Karen L, Priscu, John C, McKay, Christopher P

“…Nitrous oxide is a potent atmospheric greenhouse gas that contributes to ozone destruction. Biological processes such as nitrification and denitrification are…”
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Climate Conditions at Perennially Ice-Covered Lake Untersee, East Antarctica by Andersen, Dale T., McKay, Christopher P., Lagun, Victor

“…In November 2008 an automated meteorological station was established at Lake Untersee in East Antarctica, producing a 5-yr data record of meteorological…”
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Hypolithic microbial communities: between a rock and a hard place by Chan, Yuki, Lacap, Donnabella C., Lau, Maggie C. Y., Ha, Kong Ying, Warren-Rhodes, Kimberley A., Cockell, Charles S., Cowan, Donald A., McKay, Christopher P., Pointing, Stephen B.

“…Summary Drylands are the largest terrestrial biome on Earth and a ubiquitous feature is desert pavement terrain, comprising rocks embedded in the mineral soil…”
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Biofinder detects biological remains in Green River fish fossils from Eocene epoch at video speed by Misra, Anupam K., Rowley, Sonia J., Zhou, Jie, Acosta-Maeda, Tayro E., Dasilveira, Luis, Ravizza, Gregory, Ohtaki, Kenta, Weatherby, Tina M., Trimble, A. Zachary, Boll, Patrick, Porter, John N., McKay, Christopher P.

“…The “Search for life”, which may be extinct or extant on other planetary bodies is one of the major goals of NASA planetary exploration missions. Finding such…”
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