Results 71 to 80 of about 2,935 (226)

The Need Of Distance Learning For Astronomy Development In Indonesia

open access: yes, 2015
Astronomy is a popular topic for the public in term of astronomical phenomenon such as occultations, solar and lunar eclipses or meteor showers. In term of education, astronomy also is popular as one of the world Science Olympiads.
Malasan, Hakim L., Yamani, Avivah
core   +1 more source

Mercury's Eccentric Orbit as a Driver of Significant “Seasonal” Change in Upstream Solar Wind Forcing

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Mercury experiences the most intense and variable solar wind (SW) conditions in the solar system due to its close, eccentric orbit about the Sun. In addition to variation driven by coronal source and solar cycle, the SW arriving at Mercury varies periodically as the planet's heliocentric distance changes by over 50% per orbit.
Ryan M. Dewey   +17 more
wiley   +1 more source

Vocal Phenology of Forest Tinamous Along a Latitudinal Gradient: Effects of Daylength and Precipitation

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
Based on an analysis of eBird records, this study finds that the vocal patterns of tropical forest tinamous are primarily influenced by changes in daylength, with a secondary effect of precipitation. Birds sang more when days were longer or shorter than 12 h and during drier periods, especially in wetter regions.
Oscar Laverde‐R.   +3 more
wiley   +1 more source

Astronomy Without a Telescope

open access: yes, 2001
Created by author Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section describes: the celestial sphere, coordinate systems, the motion of the stars.
Strobel, Nick
core  

Widespread Impact‐Induced Crustal Permeability on the Early Earth

open access: yesAGU 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   +2 more
wiley   +1 more source

Spectral‐Resolved Light at Night: TEMPO Observations and Background Correction

open access: yesEarth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Artificial Light at Night (ALAN) poses risks to public health and ecosystems. While long‐term remote sensing has tracked global nighttime light, spectrally resolved light at night (spectral light at night (SLAN)) data from geostationary orbit only became available with NASA's Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission. Its
Zhixin Xue   +7 more
wiley   +1 more source

Lunar Observation Support System Using Smartphone AR for Astronomy Education

open access: yesInternational Journal of Interactive Mobile Technologies (iJIM), 2014
It is possible to improve learnersâ?? understanding of the concept of lunar phases by using Observation based Learning (OBL). In this research, Smartphone Augmented Reality (AR) technology was used to develop a multi-viewpoint AR-based mobile learning (M-VARML) system for moon observation that can be used in the real world environment.
Tian, Ke   +4 more
openaire   +3 more sources

Planetary Astronomy

open access: yes, 1998
This 1-year project was an augmentation grant to my NASA Planetary Astronomy grant. With the awarded funding, we accomplished the following tasks: (1) Conducted two NVK imaging runs in conjunction with the ILAW (International Lunar Atmosphere Week ...
Stern, S. Alan
core  

Response of the Nitrogen Isotopic Composition of Planktic Foraminifer Tissue to Surface Ocean Nutrient Cycling: A Case Study in the Northern South China Sea

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract This study presents data on geographically small‐scale patterns of nitrogen (N) isotope signals (δ15N) within the northern South China Sea (SCS) imprinted on planktic foraminifers (PF). PF from net tows on the shelf, continental slope, and in pelagic waters from summer 2019 were analyzed for δ15N.
Aaron L. Bieler   +10 more
wiley   +1 more source

Advances in astronomy and astrophysics

open access: yes, 1972
Advances in Astronomy and Astrophysics, Volume 9 covers reviews on the advances in astronomy and astrophysics. The book presents reviews on the Roche model and its applications to close binary systems.
Kopal, Zdenek
core  

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