Results 81 to 90 of about 5,498 (201)

Life on Mars? The physiological perspective

Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source

Widespread Impact‐Induced Crustal Permeability on the Early Earth

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract The early Earth (i.e., Archean and Hadean Eons, 2.5–4.0 and 4.0–4.5 Ga, respectively) experienced frequent cosmic bombardment. Impacts have been shown to stimulate crustal alteration, for instance via hydrothermal systems active for up to millions of years post‐impact.
A. M. Alexander, S. Marchi, B. C. Johnson   +2 more
wiley   +1 more source

Influence of Solar Sails on Magnetic Field Measurements in Space Plasmas

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Solar sail technology is ready to be deployed in a satellite mission carrying a science‐grade magnetometer. In preparation for such a mission, it is essential to characterize the interactions between the sail and the ambient plasma that could affect the magnetometer readings.
Konstantinos Horaites, Juan V. Rodriguez, Ying Liu   +2 more
wiley   +1 more source

Lunar Crustal Formation by Melt Migration and Differentiation Within a Stagnant Lid

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract The lunar anorthosite highlands represent the Moon's primary crust, which formed during the solidification of a magma ocean following the Moon‐forming giant impact. However, the canonical model of anorthite flotation in the crystallizing magma ocean often struggles to reproduce the long > ${ >} $200 Myr solidification timescale required by the
K. H. Dodds, C. Michaut, J. A. Neufeld
wiley   +1 more source

Characterization of Dust in Saturn's Rings Using Cassini Spacecraft Data

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract The dust distribution in Saturn's rings is investigated using dust impacts registered by the Radio and Plasma Wave Science (RPWS) instrument onboard the Cassini spacecraft. Dust impacts, recorded as spiky signals in electric field waveforms, are used to determine profiles of impact rates and amplitudes of spikes during individual equatorial ...
L. Nouzák, S. Ijaz, D. Píša, J. Pavlů, J. Vaverka, F. Němec, J. Šafránková, Z. Němeček   +7 more
wiley   +1 more source

Simulation Analysis of Kinetic Impact Effects on Near-Earth Asteroid Defense Mission Using Precise Orbit Determination

The Astronomical Journal
The potential threat of near-Earth asteroid impacts on Earth has prompted global efforts to intensify research into asteroid defense technologies, and China plans to launch such a mission.
Bo Wang, Xiaowen Duan, Fan Huang, Yuming Peng, Zhiqing Geng, Junpo Niu, Xi Lu, Jianguo Yan   +7 more
doaj   +1 more source

Effects of Comet Encke's Meteoroid Stream on the Seasonal Variation of Mercury's Ca Exosphere

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Mercury's calcium (Ca) exosphere, observed by NASA's MESSENGER mission, exhibits high temperatures (>50000 K) and pronounced seasonal variability, with its source mainly on the dawn side. Enhanced Ca emission near True Anomaly Angle (TAA) ∼25° and ∼150° has been attributed to Comet 2P/Encke meteoroid streams.
M. Moroni, A. Milillo, A. Mura, A. A. Christou, P. Pokorný, V. Mangano, A. Berezhnoy, A. Aronica, A. Brin, E. De Angelis, P. P. Di Bartolomeo, A. Kazakov, S. Massetti, S. Orsini, C. Plainaki, G. Richards, R. Rispoli, R. Sordini, M. Stumpo   +18 more
wiley   +1 more source

Kineochelins—A New Group of Siderophores From an Antarctic Bacterium

Microbial Biotechnology, Volume 19, Issue 6, June 2026.
Genome‐guided analysis of an Antarctic Actinokineospora strain led to the discovery of kineochelins, a new group of siderophores involved in iron sequestration and microbial competition. Kineochelin production inhibits co‐occurring bacteria and clinically relevant yeasts, highlighting Antarctic microorganisms as promising sources of bioactive natural ...
Stanislava Kralova, Peter Spacek, Johannes Gafriller, Matej Bezdicek, Viktoria Medvedcova, Joana Séneca, Jay Osvatic, Ulrike Grienke, Thomas Rattei, Olga N. Sekurova, Sergey B. Zotchev, Martin Zehl, Alexander Loy   +12 more
wiley   +1 more source

Microbial endolithic community at Meteor Crater

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 955-962, June 2026.
Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley   +1 more source

Anhydrous minerals in asteroid Bennu: Evidence for well‐preserved primordial components

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 963-986, June 2026.
Abstract Aqueously altered carbonaceous astromaterials are dominated by secondary minerals, but a minor fraction of primary, anhydrous silicates and oxides escape alteration, offering insight into the original composition of asteroid parent bodies. We report the mineralogy, petrology, mineral chemistry, and oxygen isotopes of anhydrous minerals—50 ...
S. S. Russell, I. A. Franchi, T. Salge, X. Zhao, R. H. Jones, A. J. King, N. V. Almeida, P. F. Schofield, H. C. Bates, E. A. Cortes‐Calderon, N. Kawasaki, Y. Yurimoto, Y. Marrocchi, G. Libourel, K. Thomas‐Keprta, L. P. Keller, K. Righter, T. J. McCoy, T. J. Zega, J. J. Barnes, A. N. Nguyen, S. Tachibana, H. C. Connolly Jr, D. S. Lauretta   +23 more
wiley   +1 more source