Results 51 to 60 of about 2,729 (209)

Current exobiology missions to Mars. Importance for geoscience and search of Life beyond Earth [PDF]

, 2021
The relevance of the topic of the bachelor's thesis "Current exobiology missions to Mars" is associated with the awareness of the similarity of some conditions and processes on Earth and Mars.
Ovcharenko, Vladyslav
core  

Atmospheric Microbial Transport to Antarctica and Its Ecological Implications: A Systematic Review

Environmental Microbiology, Volume 28, Issue 9, September 2026.
Atmospheric transport to Antarctica operates via long‐range advection, marine aerosolization, and local resuspension, acting as a strict ecological filter. This selective barrier could actively shape local ecosystems by seeding them with functionally distinct, stress‐adapted microbial pioneers capable of surviving extreme conditions.
Rodrigo Goldenberg‐Barbosa, Anna Donato, Dafne Anjos, Letícia Eller, Heitor Evangelista, Cesar Amaral   +5 more
wiley   +1 more source

Identification of the Beagle 2 lander on Mars [PDF]

Royal Society Open Science, 2017
The 2003 Beagle 2 Mars lander has been identified in Isidis Planitia at 90.43° E, 11.53° N, close to the predicted target of 90.50° E, 11.53° N. Beagle 2 was an exobiology lander designed to look for isotopic and compositional signs of life on Mars, as ...
J. C. Bridges, J. Clemmet, M. Croon, M. R. Sims, D. Pullan, J.-P. Muller, Y. Tao, S. Xiong, A. R. Putri, T. Parker, S. M. R. Turner, J. M. Pillinger   +11 more
doaj   +1 more source

Exobiology issues and experiments at a Mars base [PDF]

, 1986
Research in Exobiology, the study of the origin, evolution, and distribution of life in the universe, may be a major component of the science activities at a Mars Base.
Mckay, Christopher P.
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A History of the Extraterrestrial Life Debate

Zygon, 1997
From antiquity to the present, humans have debated whether intelligent life exists elsewhere in the universe. This presentation will survey this debate, examining the roles played in it by science, religion, philosophy, and other areas of human learning.
doaj   +2 more sources

Publications of the Exobiology Program for 1991: A special bibliography [PDF]

, 1993
This document contains a list of 1991 publications resulting from research pursued under the auspices of NASA's Exobiology ...

core  

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

American Journal of Botany, Volume 113, Issue 8, August 2026.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian, Emily B. Sessa, Richard S. Barclay, Regan E. Dunn, Jacquelyn L. Gill, Kirk R. Johnson, S. Augusta Maccracken, Ian M. Miller, Jarmila Pittermann, Ellen D. Currano   +9 more
wiley   +1 more source

SPECTROModule: A modular in-situ spectroscopy platform for exobiology and space sciences [PDF]

, 2019
The evolution of the solar system and the origin of life remain some of the most intriguing questions for humankind. Addressing these questions experimentally is challenging due to the difficulty of mimicking environmental conditions representative for ...
Deiml, Michael, Brozek, Petr, Kapoun, Petr, Rabbow, E., Sgambati, A., Elsaesser, A., Deiml, M., Manieri, P., Brozek, P., Mariani, M., Stettner, A., Stettner, Armin, Elsaesser, Andreas, Latini, V., Latini, Valentina, Kahrs, J., Kapoun, P., Rabbow, Elke, Demets, Rene, Mariani, Marco, Demets, R., Kahrs, Jan, Manieri, Pierfilippo, Sgambati, Antonella   +23 more
core   +1 more source

Light Regimes Shape Utilization of Extracellular Organic C and N in a Cyanobacterial Biofilm

mBio, 2016
Although it is becoming clear that many microbial primary producers can also play a role as organic consumers, we know very little about the metabolic regulation of photoautotroph organic matter consumption.
Rhona K. Stuart, Xavier Mayali, Amy A. Boaro, Adam Zemla, R. Craig Everroad, Daniel Nilson, Peter K. Weber, Mary Lipton, Brad M. Bebout, Jennifer Pett-Ridge, Michael P. Thelen   +10 more
doaj   +1 more source

Comparing Monte Carlo Models of Impact Alteration of Planetary Atmospheres

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract One process that affects atmospheric surface pressure is impact bombardment. The evolution of a planet's atmosphere under impact bombardment is an open question. We use a Monte Carlo method to evolve a range (0.006–92.5 bar) of initial atmospheres at Mars, Earth, and Venus under bombardment of 5×106 $5\times 1{0}^{6}$ impactors using seven ...
M. R. Huffman, D. A. Brain, K. N. Singer, J. C. Johnston, C. A. Caldwell   +4 more
wiley   +1 more source