Results 151 to 160 of about 997,592 (241)

Astronomy Education Review: Astronomy Education Joins the Mainstream

, 2007
In this article, published in Mercury (the popular-level magazine of the Astronomical Society of the Pacific), we review the first five years of the Journal "Astronomy Education Review" and discuss its role in professionalizing astronomy education, and ...
Fraknoi, Andrew, Wolff, Sidney C.
core  

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary, Xian Lu   +1 more
wiley   +1 more source

CrossDI: A comprehensive dataset crossing three databases for calculating disruption indexes. [PDF]

Sci Data
Xu S, Wang C, An X, Liu J.
europepmc   +1 more source

Quasi‐Homologous Solar Flares and Impacts on Thermospheric Density and Satellite Orbital Drag

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Quasi‐Homologous Flaring (QHF) activity from active regions on the Sun releases intense electromagnetic radiation in recurrent bursts over extended periods. In this letter, we present the effects of recurrent impulsive extreme ultraviolet (EUV) heating on thermospheric neutral density and the resulting atmospheric drag on satellites based on ...
S. Tulasi Ram, Princy K. Dubey, S. Mondal, Denny M. Oliveira, Jayashree Bulusu, Chinmaya Nayak, D. Rout, Anil Raghav, A. P. Dimri   +8 more
wiley   +1 more source

A decagon wave around Saturn's south pole. [PDF]

Sci Adv
Sánchez-Lavega A, Simon AA, Wong MH, Fletcher LN, Antuñano A, Hueso R, Iñurrigarro P, Flix-Bellmunt A, Miró A, García-Melendo E, Barry T, Oger JP, Orton GS, Garate-Lopez I.   +13 more
europepmc   +1 more source

Mechanistic Insights Into Sustainable Catalytic Pyrolysis of Biomass‐Derived Ferulic Acid: The Role of Alumina Regeneration

Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
Surface‐bound ferulate phenolate complexes undergo styrene‐like polymerization on alumina, yielding a polymeric carbonaceous layer that progressively transforms into polyaromatic carbon domains with concomitant release of aromatic products, while parallel surface‐assisted decarboxylation produces 4‐vinylguaiacol. ABSTRACT A fundamental understanding of
Tetiana V. Kulik, Borys B. Palianytsia, Mykola M. Ilchenko, Nataliia S. Nastasiienko, David J. Morgan, Liudmila P. Storozhuk, David J. Willock, Greg Shaw, Duncan F. Wass, Rafael Luque, Philip R. Davies, Mykola T. Kartel   +11 more
wiley   +1 more source

Comparing optimal transport and machine learning approaches for databases merging in scenarios involving missing data in covariates. Application to medical research. [PDF]

Bioinformatics
N'kam Suguem F, Déjean S, Saint Pierre P, Savy N.   +3 more
europepmc   +1 more source

Unusual Enhancement in He(23S) Airglow Brightness Associated With Interplanetary Magnetic Field Northward Turnings During the 2025 New Year's Day Storm

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The upper thermosphere is important in the context of space weather, but continuous monitoring of the thermosphere at high latitudes remains limited despite its strong variations associated with geomagnetic activity. Orthohelium, He(23S), is found from the upper thermosphere to lower exosphere, and is a promising tracer of atmospheric dynamics.
Takanori Nishiyama, Masato Kagitani, Noora Partamies, Daniel Whiter, Takuo T. Tsuda, Yasunobu Ogawa, Fred Sigernes   +6 more
wiley   +1 more source

Neptune's inner moons and rings are exposed icy body interiors. [PDF]

Sci Adv
Davis MR, Belyakov M, Wong I, Milby Z, Brown ME.   +4 more
europepmc   +1 more source

Enhancement of Magnetic Flux Transferred to the Magnetotail Due to a Storm‐Time Kelvin‐Helmholtz Instability

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Along the flank magnetopause, magnetosheath flow interfaced with the relatively stationary magnetosphere produces strong flow shears, and the Kelvin‐Helmholtz instability (KHI) occurs. When the interplanetary magnetic field (IMF) is southward, anti‐parallel day‐side reconnection and KHI can interact, which may enhance the reconnection rate as ...
Brandon L. Burkholder, Katariina Nykyri, Xuanye Ma, Lauri Holappa, Harsha Gurram, Rachel C. Rice, David Sibeck, Dinesh K. V. Radhakrishnan   +7 more
wiley   +1 more source