Results 71 to 80 of about 211,186 (262)
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.Abstract In this study, we use the Specified Dynamics Whole Atmosphere Community Climate Model with thermosphere‐ionosphere eXtension (SD‐WACCM‐X) to investigate how the migrating solar semidiurnal tide (SW2) in the mesosphere and lower thermosphere (MLT) responds to the strength of Arctic and Antarctic Stratospheric Polar Vortices (SPVs).
Sunil Kumar, Jens Oberheide, Xian Lu
wiley +1 more source
Space-based Aperture Array For Ultra-Long Wavelength Radio Astronomy
, 2015 The past decade has seen the rise of various radio astronomy arrays, particularly for low-frequency observations below 100MHz. These developments have been primarily driven by interesting and fundamental scientific questions, such as studying the dark ...
Arts, Michel +7 more
core +1 more source
Laser Ablation Sampling With Low‐Power Plasma: A LA‐MIP‐MS Instrument for Spaceflight
Rapid Communications in Mass Spectrometry, Volume 40, Issue 3, 15 February 2026.ABSTRACT Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min), rendering them unsuitable for spaceflight, as they are too resource‐intensive for planetary spacecraft.
Benjamin J. Farcy +11 more
wiley +1 more source
The Astrophysical Journal LettersImpact cratering is the most common geological process occurring on terrestrial planets. The morphologies of impact craters reflect not only the impact conditions but the target properties as well.
Ling Zhang +7 more
doaj +1 more source
ṬULŪ’ AL-HILĀL Rekonstruksi Konsep Dasar Hilāl
Al-Ahkam, 2014 This paper intends to review the basic concepts of crescent issue as the most fundamental concepts of the Hijri calendar systems. The crescent basic concept of ṭulū‘ al-hilāl, based on these principles: first, put the crescent as a matter of objective ...
Nur Aris
doaj +1 more source
Radar Perspective of the Aristarchus Pyroclastic Deposit and Implications for Future Missions
The Planetary Science Journal, 2023 The Aristarchus plateau represents one of the most complex volcanic provinces on the lunar surface and is host to the largest pyroclastic deposit on the Moon.
G. A. Morgan +9 more
doaj +1 more source
A Motivating Exploration on Lunar Craters and Low-Energy Dynamics in the Earth -- Moon System
, 2010 It is known that most of the craters on the surface of the Moon were created by the collision of minor bodies of the Solar System. Main Belt Asteroids, which can approach the terrestrial planets as a consequence of different types of resonance, are ...
B.J. Gladman +21 more
core +3 more sources
The Promise of Solid Lubricants for a Sustainable Future
Advanced Materials, Volume 38, Issue 8, 6 February 2026.Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher +7 more
wiley +1 more source
Thermophysical Diversity of Young Lunar Crater Ejecta Revealed with LRO Diviner Observations
The Planetary Science JournalYoung (
Cailin L. Gallinger +7 more
doaj +1 more source
Quarterly report of the Haystack Observatory, 1 January - 31 March 1971 [PDF]
Radar astronomy observations on quasars, lunar craters, and Venus ...
core +1 more source