Results 101 to 110 of about 31,655 (250)

An Overview of the Jupiter Icy Moons Orbiter (JIMO) Mission, Environments, and Materials Challenges [PDF]

, 2012
Congress authorized NASA's Prometheus Project in February 2003, with the first Prometheus mission slated to explore the icy moons of Jupiter with the following main objectives: (1) Develop a nuclear reactor that would provide unprecedented levels of ...
Edwards, Dave
core  

Under the cover of darkness: Foraging behaviour increases on cloudy, new moon nights in a pelagic seabird

Ibis, EarlyView.
While many visual predators feed exclusively during the day, others exploit foraging opportunities at night, although the efficiency with which they do so is strongly influenced by ambient light levels. We investigated the influence of variation in nocturnal light on the foraging behaviour of a small pelagic seabird, the European Storm‐petrel ...
Darren Wilkinson, Adam Kane, Mark Jessopp, John L. Quinn   +3 more
wiley   +1 more source

A Physics‐Based Frequency‐Temperature Seismic Anelastic Attenuation Model for Planetary Ice Shells

Earth and Space Science
Intrinsic attenuation in planetary ices remains poorly constrained at seismic frequencies and low temperatures, limiting quantitative predictions of wave propagation in icy moons.
L. Delaroque, A. Lucas, T. Kawamura, S. Rodriguez   +3 more
doaj   +1 more source

High‐throughput tracking reveals differences in low‐tide space use between day and night in wintering Red Knots

Ibis, EarlyView.
Within intertidal ecosystems, the availability of foraging areas for shorebirds changes rapidly with the tidal cycle, imposing a strict regime of foraging opportunity. Several shorebird species have been reported to forage during both diurnal and nocturnal low‐tide periods, making the most of available foraging times, but detailed descriptions of ...
Christine E. Beardsworth, Selin Ersoy, Ran Nathan, Sivan Toledo, Allert I. Bijleveld   +4 more
wiley   +1 more source

A Potential Mushy Source for the Geysers of Enceladus and Other Icy Satellites

Geophysical Research Letters
Enceladus is a target for astrobiology due to the H2O plume ejecta measured by the Cassini spacecraft and the inferred subsurface ocean that could be the source of the geysers.
Colin R. Meyer, Jacob J. Buffo, Francis Nimmo, Andrew J. Wells, Samuel Boury, Mark Fox‐Powell, Tara C. Tomlinson, Jamie R. G. Parkinson, Geoffrey M. Vasil   +8 more
doaj   +1 more source

Microbes from ambient-pressure analogues offer insights into possible life in Europa’s high-pressure subsurface ocean

Frontiers in Microbiology
Under its thick ice layer, Europa contains a shielded liquid water ocean where habitable conditions may exist. To effectively assess the habitability of this environment and the implications on putative biosignature formation, it is essential to ...
Alvaro del Moral, Dominic Siggs, Michael C. Macey, Mark G. Fox-Powell, Victoria K. Pearson, Karen Olsson-Francis   +5 more
doaj   +1 more source

Ions in the Deep Subsurface of Earth, Mars, and Icy Moons: Their Effects in Combination with Temperature and Pressure on tRNA-Ligand Binding. [PDF]

Int J Mol Sci, 2021
Jahmidi-Azizi N, Gault S, Cockell CS, Oliva R, Winter R.   +4 more
europepmc   +1 more source

A Laser Heterodyne Radiometer for Sampling Plumes of Icy Moons [PDF]

, 2019
We propose to develop an instrument capable of passively sampling plumes in icy moon environments for the components needed for life and habitability. The compact, low-mass and power, orbital instrument would be an occultation-viewing laser heterodyne ...
Wilson, Emily, Mclinden, Matthew, Villanueva, Geronimo   +2 more
core  

Determining the characteristics of icy moons' impactors: An experimental approach

, 2022
Crater counting is the main method used to determine the age of a planetary surface. This method relies on knowing the cratering rate to estimate the absolute age of a surface.
Tagliacarne, Filippo (author)
core  

Genetic erosion and projected habitat loss in the protected Alpine moth Actias isabellae galliaegloria (Lepidoptera: Saturniidae) Erosion génétique et perte d'habitat chez le papillon alpin protégé Actias isabellae galliaegloria (Lepidoptera: Saturniidae)

Insect Conservation and Diversity, EarlyView.
Genomic analyses of Actias isabellae galliaegloria reveal low genetic diversity and inbreeding, indicating a historical bottleneck and reduced adaptive potential. Climate change is projected to drastically reduce suitable habitat by 2050, driven by rising temperatures and declines in Scots pine, its primary host.
Flora Lambert‐Auger, Marina Querejeta, Stéphane Boyer, Marta Vila, Carlos Lopez‐Vaamonde, Jérémy Gauthier   +5 more
wiley   +1 more source