Results 51 to 60 of about 54,003 (192)

Intrusion‐Induced Forced Folding Model for the Origin of Séítah Formation Domes on the Jezero Crater Floor, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract The JPL rover Perseverance's investigations of Jezero crater's floor reveal that the ultramafic Séítah formation and the overlying mafic Máaz formation are deformed into a broad, low‐amplitude structural dome. Mastcam‐Z stereo images processed into digital outcrop models, together with RIMFAX ground‐penetrating radar profiles, were used to ...
Robert Barnes, Sanjeev Gupta, Allan Treiman, Steven Sholes, Gerhard Paar, Christian Tate, Andreas Bechtold, Katie Stack‐Morgan, James F. Bell III, Justin Maki, Briony Horgan, Jorge Nuñez, Chris Traxler, Thomas Ortner, Emileigh S. Shoemaker Thackston, Svein‐Erik Hamran, Sanna Alwmark, Melissa Rice, Vivian Sun, Olivier Beyssac, Andrew Annex, Adrian Brown, Linda Kah, David Flannery, Justin I. Simon, Sebastian Walter, Keyron Hickman‐Lewis, Ken Farley   +27 more
wiley   +1 more source

Al‐Khadhaf: The first camera‐observed (H5–6) meteorite fall from Oman

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 522-547, March 2026.
Abstract A fireball camera system installed in 2022 by the Oman Meteorite Monitoring Project (OMMP) as part of the Global Fireball Observatory (GFO) recorded a 3.2 s fireball on March 8, 2022 at 8:15 p.m. UTC. A meteoroid of 4 ± 2 kg entered the atmosphere at 14.0 km/s.
Anna Zappatini, Edwin Gnos, Beda A. Hofmann, Urs Eggenberger, Pascal M. Kruttasch, Frank Gfeller, Mohammad Tauseef, Ingo Leya, Hadrien A. R. Devillepoix, Eleanor K. Sansom, Martin Cupák, Sophie E. Deam, Thomas W. C. Stevenson, Peter Jenniskens, Sebastian Lindemann, Beat Booz, Muati. S. Al‐Muati, Abdulmunaim A. Al‐Zakwani, Hussain A. Al‐Ghafri   +18 more
wiley   +1 more source

Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites

Advanced Science, Volume 13, Issue 9, 13 February 2026.
Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev, Nobumoto Nagasawa, Hongxin Wang, Vladimir Pomjakushin, Martin Kunz, Yoshitaka Yoda, Stephen P. Cramer, Qianli Chen, Artur Braun   +8 more
wiley   +1 more source

Extragalactic SETI

, 2022
Abstract: The Breakthrough Listen Initiative has embarked on a comprehensive SETI survey of nearby stars in the Milky Way that is vastly superior to previous efforts as measured by a wide range of different metrics. SETI surveys traditionally ignore the fact that they are sensitive to many background objects, in addition to the foreground target star ...
Garrett, Mike, Siemion, Andrew
openaire   +1 more source

First Case of COVID-19 in the Far Western Province of Nepal

Journal of Karnali Academy of Health Sciences, 2020
Recently emerged worldwide public health problem coronavirus disease (COVID-19) is an infectious disease caused by a severe acute respiratory syndrome coronavirus 2(SARS Cov-2); end of 2019  it was identified as the cause of a cluster of pneumonia cases
Sher Bahadur Kamar, Nirajan Datta Sharma, Santosh Pandey, Ramesh Shahi, Jagadish Joshi, Pradip Mishra, Hem Raj Pande, Kapil Amgain   +7 more
doaj  

Polarization Criterion in Targeted SETI Observation

The Astronomical Journal, 2023
In this paper, we propose a novel method for distinguishing extraterrestrial intelligence (ETI) signals from radio frequency interference (RFI) by leveraging polarization features.
Jian-Kang Li, Yu Chen, Bo-Lun Huang, Zhen-Zhao Tao, Xiao-Hang Luan, Xiao-Hui Sun, Tong-Jie Zhang, Vishal Gajjar   +7 more
doaj   +1 more source

The Search for Extraterrestrial Intelligence (SETI) [PDF]

, 1977
A bibliography of reports concerning the Search for Extraterrestrial Intelligence is presented. Cosmic evolution, space communication, and technological advances are discussed along with search strategies and search ...
Billingham, John, Morrison, Philip, Wolfe, John   +2 more
core   +1 more source

Optical SETI Observations of the Anomalous Star KIC 8462852

, 2015
To explore the hypothesis that KIC 8462852's aperiodic dimming is caused by artificial megastructures in orbit (Wright et al. 2015), rather than a natural cause such as cometary fragments in a highly elliptical orbit (Marengo et al.
Richards, Jon, Schuetz, Marlin, Shostak, Seth, Vakoch, Douglas A.   +3 more
core   +1 more source

Morphology of Antarctic Polygons and Implications for Polygon Evolution and Subsurface Ice Dynamics

Permafrost and Periglacial Processes, Volume 37, Issue 1, Page 143-153, January/March 2026.
ABSTRACT Polygonal terrain results from thermal contraction, is commonly found in periglacial environments, and serves as a valuable proxy for interpreting subsurface ice distribution and climate history on Earth and Mars. In this study, we investigate the morphology of polygons in Beacon Valley, Antarctica, to assess the relationship between polygon ...
Rachael H. Hoover, Robert E. Grimm, Douglas E. Kowalewski, Andrew X. Wilcoski, David E. Stillman   +4 more
wiley   +1 more source

Türkiye'de Yağış Ölçer Ağı Yoğunluğunun Yağış Dağılımı Modellemesine Etkisinin Değerlendirilmesi: Antalya Havzası Örneği

Turkish Journal of Agriculture: Food Science and Technology
Yağış deseninin ve potansiyelinin doğru belirlenmesi su kaynakları yönetimi, planlaması ve geliştirilmesi açısından çok önemlidir. Yağışlar zamana ve yere göre en fazla değişkenlik gösteren iklim elemanıdır.
Hasan Hüseyin Aksu
doaj   +1 more source