Results 1 to 10 of about 2,935 (226)

Scientific Knowledge of the Moon, 1609 to 1969

open access: yesGeosciences, 2018
Discoveries stemming from the Apollo 11 mission solved many problems that had vexed scientists for hundreds of years. Research and discoveries over the preceding 360 years identified many critical questions and led to a variety of answers: How did the ...
Charles A. Wood
doaj   +1 more source

Unveiling Illumination Variations During a Lunar Eclipse: Multi-Wavelength Spaceborne Observations of the January 21, 2019 Event

open access: yesRemote Sensing
Space-based observations of the total lunar eclipse on 21 January 2019 were conducted using the geostationary Earth-orbiting satellite Gaofen-4 (GF-4). This study represents a pioneering effort to address the observational gap in full-disk lunar eclipse ...
Min Shu   +5 more
doaj   +1 more source

Evolution of Lunar Orbit under Climate Dynamics since the Last Glacial Cycle

open access: yesThe Astrophysical Journal
Understanding the long-term evolution of lunar orbit is an essential task in astronomy and astrophysics because lunar and planetary ephemerides are indispensable in many important applications, such as spacecraft navigation and reference frame ...
M. Kiani Shahvandi
doaj   +1 more source

TATA KELOLA LINGKUNGAN IBU KOTA NUSANTARA BERBASIS ILMU FALAK, ECO-ASTRONOMY DAN MAQASHID SYARI’AH

open access: yesHakam: Jurnal Kajian Hukum Islam dan Hukum Ekonomi Islam
This study examines the scope of applying Islamic astronomy (Ilmu Falak), eco-astronomy, and Maqasid al-Shari’ah within the environmental governance framework of Ibu Kota Nusantara (IKN), focusing on their contribution to sustainable urban development ...
Vivit Fitriyanti, Akhmad Haries
doaj   +1 more source

How middle level science teachers visualize and translate motion, scale, and geometric space of the Earth-Moon-Sun system with their students

open access: yesPhysical Review Physics Education Research, 2018
[This paper is part of the Focused Collection on Astronomy Education Research.] We examined teachers’ spatial-scientific reasoning and the alternative conceptions they held regarding Earth-space content. While participating in a professional development (
Jennifer Wilhelm   +3 more
doaj   +1 more source

Development of the radio astronomical method of cosmic particle detection for extremely high-energy cosmic ray physics and neutrino astronomy

open access: yesEPJ Web of Conferences, 2017
The proposal to use ground based radio telescopes for detection of Askaryan radio pulses from particle cascades arising when extremely high-energy (EHE > 1020 eV) cosmic rays (including neutrinos) interact with the lunar regolith of multi gigaton mass ...
Zheleznykh Igor   +3 more
doaj   +2 more sources

Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft–Comet Encounters

open access: yesThe Planetary Science Journal, 2021
Using the gas drag by sublimating cometary surface ices for the acceleration of dust particles and deceleration by the gravity field of the nucleus combined with basic laws of mechanics, the sizes, velocities, and number densities of escaping particles ...
Uwe Fink   +6 more
doaj   +1 more source

Evidence for electron Landau damping in space plasma turbulence

open access: yesNature Communications, 2019
Various physical mechanisms are proposed to explain the heating observed in turbulent astrophysical plasmas. Here, Chen et al. find a signature consistent with one of these mechanisms, electron Landau damping, by applying a field-particle correlation ...
C. H. K. Chen, K. G. Klein, G. G. Howes
doaj   +1 more source

A Flat-bottomed Buried Crater and Paleo-layered Structures Revealed at the Von Kármán Crater Using Lunar Penetrating Radar

open access: yesThe Astrophysical Journal Letters
Impact 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

open access: yesAl-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

Home - About - Disclaimer - Privacy