Astronomy & Space
396 sites
https://grace.umd.edu/~tlaloc/archastro
The official web presence of the Center for Archaeoastronomy, a professional research organization founded at the University of Maryland in 1978, dedicated to the interdisciplinary study of astronomy in ancient and indigenous cultures. Visitors can explore peer-reviewed publications, newsletters, essays on ethnoastronomy, and learn about ISAAC, the international society promoting archaeoastronomy worldwide.
https://kernastro.org/
The Kern County Astronomical Society (KCAS) is a Bakersfield, California astronomy club founded in 1956 with a mission to foster interest in astronomy among members and the general public. The site offers information on star parties, meetings, membership, and a photo gallery featuring events like the Dark Skies Festival and visits to Mount Wilson Observatory.
https://britastro.org/useful-links
The British Astronomical Association, supporting amateur astronomers since 1890, maintains this curated directory of useful links covering UK astronomy societies, observing resources, and related organizations. Visitors will find connections to groups like the Society for Popular Astronomy, the Federation of Astronomical Societies, and many more resources spanning the full breadth of amateur astronomy.
https://aurorawatch.lancs.ac.uk/
AuroraWatch UK is a free alert service run by scientists at Lancaster University's Space and Planetary Physics group, notifying users when the aurora borealis might be visible from the UK. The site offers real-time magnetogram plots, activity stackplots, a map, and multi-channel alerts via email, Twitter, Telegram, and more.
http://billsnyderastrophotography.com/
Bill Snyder's astrophotography site showcases an extensive gallery of deep-sky images including nebulae, galaxies, and star clusters captured from his personal and shared observatories in Pennsylvania. The collection includes several NASA Astronomy Picture of the Day (APOD) winners and is organized into detailed categories covering narrowband, RGB, and HaRGB imaging techniques.
http://server1.wikisky.org/?locale=EN
WikiSky.org is an interactive online sky map that lets users explore stars, galaxies, nebulae, and constellations through a browser-based virtual telescope interface. The site supports over 15 languages and includes community features like astro photography, forums, blogs, and user-contributed star annotations.
http://thehellhole.com/
A detailed German-language educational site covering black holes and singularities, exploring topics from stellar and supermassive black holes to Hawking radiation, mathematical models, and even the theoretical dangers of black holes at CERN. The site draws a fascinating parallel between modern astrophysics and Norse mythology's concept of the Maelstrom, making complex science accessible through storytelling.
http://celestialwonders.com/
Frank Barrett's Celestial Wonders showcases an extensive collection of astrophotography spanning nebulae, galaxies, star clusters, solar system objects, and H-alpha imagery. With galleries organized by subject, a slideshow feature, and even an online store, this is a richly detailed labor of love for deep-sky and planetary imaging enthusiasts.
https://astronomy-links.com/
Clark M. Thomas of Roanoke, VA has assembled a free, non-commercial collection of astronomy links organized to help stargazers at all experience levels discover resources, from deep sky databases and space telescope galleries to star party listings and homework help. Highlights include curated 'Best of the Best' picks, a newest-links section for returning visitors, and a broad sweep of resources covering Mars missions, the Messier catalog, observing clubs, and more.
http://asnh.org/
The Astronomical Society of New Haven (ASNH) has been connecting Connecticut stargazers for over 80 years, offering public star parties, observing events, astrophotography resources, and a radio show called Cosmic Perspective. Visitors can browse an event calendar, access sky charts, meteorite information, NASA content, and even a book by ASNH member Ruben Kier titled 'The 100 Best Targets for Astrophotography.'