Astronomy & Space
396 sites
http://jgiesen.de/welcomeEnglish.htm
A rich hobbyist resource by J. Giesen featuring an extensive collection of Java and JavaScript applets covering astronomy topics like sun and moon phases, planet positions, sundials, Venus transits, and satellite observation. Visitors will also find physics quizzes, chaos and fractal simulations, color theory tools, and links to books and software, making it a deep interactive playground for science enthusiasts.
http://spider.seds.org/spider/Misc/naming.html
A detailed reference page from SEDS (Students for the Exploration and Development of Space) explaining how stars are named, from ancient cultural traditions to modern systematic schemes like the Bayer designation system introduced in 1603. Created by Hartmut Frommert and Christine Kronberg, the page covers Greek letter designations, star catalogs, IAU nomenclature standards, and debunks commercial 'name a star' schemes.
https://bgaac.org/
The Bluegrass Amateur Astronomy Club is a community astronomy group based in Lexington, Kentucky, that holds monthly meetings and stargazing sessions at Raven Run Nature Sanctuary from March through November. The site offers club news, a beginner's section, a photo gallery, and sky charts for local observers, welcoming families and newcomers to the hobby.
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://meteoritemarket.com/
The Meteorite Market has been one of the web's oldest meteorite dealers since 1995, offering over 100 scientifically significant varieties including Martian, Lunar, Pallasite, and Carbonaceous Chondrite specimens with detailed photos and pricing. Visitors can browse an extensive alphabetical catalog while learning about meteorite types through dozens of informational pages, making it both a shopping destination and an educational resource for collectors and enthusiasts alike.
http://skymaps.com/
Skymaps.com, created by Kym Thalassoudis, offers free monthly sky maps and star charts in PDF format to help amateur and professional skywatchers explore constellations, planets, and comets. The site also features a curated store with planispheres, star atlases, telescopes, and astronomy books for all skill levels.
https://webbdeepsky.com/
The Webb Deep-Sky Society is an international organization founded in 1967 bringing together amateur and professional astronomers devoted to observing double stars and deep-sky objects such as galaxies, nebulae, and clusters. Members receive access to publications like The Deep-Sky Observer, monthly featured objects, star atlases, and invitations to annual meetings and star parties.
https://panspermia.org/
Cosmic Ancestry is a deep-dive scientific resource exploring the theory of panspermia, arguing that life on Earth originated from space and that all evolutionary innovation depends on genetic material of cosmic origin. The site covers astrobiology, comets as delivery systems, interstellar dust, the work of Fred Hoyle and Chandra Wickramasinghe, and presents extensive evidence comparing Darwinism with the Cosmic Ancestry hypothesis.
https://flintriverastronomy.org/
The Flint River Astronomy Club (FRAC) is a Georgia-based astronomy club serving the Griffin area, hosting monthly meetings, public observing events at Indian Springs State Park, and club observing weekends at Joe Kurz WMA. Members have access to observing lists, tools, national awards, newsletters, and articles, making this a well-rounded hub for amateur astronomers in the region.
http://planetquest.org/
PlanetQuest is a nonprofit citizen science project inviting the public to participate in real exoplanet detection research using distributed computing and a shared software platform called the Collaboratory. Visitors can download tools to search stellar light curves for transiting planets, contributing spare CPU cycles to a project affiliated with NASA's Kepler Mission.