Astronomy & Space
396 sites
https://projectrho.com/starmap.html
Winchell Chung (aka Nyrath the nearly wise) maintains this ambitious 3-D starmap project dedicated to the golden age of science fiction and real astronomical data. Inspired by E.E. 'Doc' Smith's classic space operas, the site blends scientific accuracy with a deep love of the stars to create interactive three-dimensional maps of nearby stellar neighborhoods.
https://solarham.com/
SolarHam is a comprehensive real-time space weather monitoring hub, tracking solar flux indices, sunspot regions, geomagnetic forecasts, CME activity, and X-ray data from sources like NOAA, SOHO, and STEREO. Packed with live imagery, solar wind feeds, and 3-day geomagnetic outlooks, it serves as an essential reference for amateur radio operators, aurora chasers, and space weather enthusiasts alike.
http://blackcanyonastronomy.com/
The Black Canyon Astronomical Society (BCAS) is an amateur astronomy club serving Western Colorado, offering public meetings, star parties, dark sky preservation efforts, and outreach programs to schools and community groups. The site features a calendar of events, astrophotography gallery, observing highlights, and information on joining the Astronomical League.
https://setiathome.ssl.berkeley.edu/
SETI@home is the legendary UC Berkeley distributed computing project that enlisted millions of volunteers worldwide to analyze radio telescope data in the Search for Extraterrestrial Intelligence. Though now in hibernation and no longer distributing tasks, the site preserves its community message boards, user statistics, and ongoing back-end data analysis efforts that continue to this day.
http://astro.vaporia.com/start/transientastronomy.html
A detailed reference page from the astro.vaporia.com astrophysics index, covering transient astronomy and the study of short-lived astronomical phenomena such as supernovae, gamma-ray bursts, fast radio bursts, and gravitational wave events. It catalogs major sky surveys like ZTF, Pan-STARRS, and the Rubin Observatory, making it a useful entry point for anyone exploring time-domain astronomy.
https://astunit.com/astunit_tutorial.php?topic=glossary
The Astronomical Unit is a comprehensive astronomy tutorial site covering everything from choosing a first telescope to positional astronomy, stellar evolution, and debunking pseudoastronomy claims. Visitors will find practical guides, a detailed glossary, book recommendations, DIY telescope projects, and rigorous critiques of popular astronomical myths like the '2012 nonsense' and Apollo conspiracy theories.
https://atmob.org/
The Amateur Telescope Makers of Boston (ATMoB) is a 501(c)3 nonprofit astronomy club that meets monthly at the Harvard-Smithsonian Center for Astrophysics, welcoming the public to join in observing, telescope making, and outreach events. The site offers club history, star party schedules, a clubhouse sky-conditions monitor, photo albums, and resources for getting started in amateur astronomy.
http://pictures.ed-morana.com/
Ed Morana's personal astronomy photo and video archive documents rare celestial events including total solar eclipses, Venus and Mercury transits, ISS transits, asteroid occultations, and the Northern Lights. The collection spans events from 2006 through 2024, with time-lapse composites and an Android app for ISS transit prediction making it a genuinely useful resource for amateur astronomers.
http://asnne.org/
The Astronomical Society of Northern New England (ASNNE) is an all-volunteer non-profit based in Kennebunk, Maine, founded in 1982 to promote public awareness of astronomy. Members enjoy star parties, telescope observing sessions, monthly discussions, and access to the Starfield Observatory, making it welcoming for beginners and experienced amateur astronomers alike.
http://wiki.solarsails.info/index.php/Main_Page
SolarSailWiki is a community-edited wiki dedicated entirely to solar sail spacecraft, covering the science of light pressure, mission histories, technologies, and future applications for propellantless space travel. With sections on design, real-world missions like the Planetary Society's LightSail, books, papers, and conferences, it serves as a comprehensive reference for anyone fascinated by this elegant form of space propulsion.