Astronomy & Space
396 sites
http://meteorlab.com/
New England Meteoritical Services (meteorlab.com) is a long-running resource dedicated to everything about meteorites, including identification, appraisal, and high-resolution structural imagery through a companion site covering primary and secondary meteorite structures. The organization has been online since 1994 and served as examiner and appraiser of the historic Huss-Nininger Collection of Meteorites and Tektites, making it a notable reference for both collectors and researchers.
https://in-the-sky.org/
Created by Dominic Ford, In-The-Sky.org is a richly detailed astronomy portal offering real-time night sky guides, interactive planetarium tools, satellite tracking, and event calendars for celestial phenomena like eclipses, conjunctions, and meteor showers. Visitors can explore 3D solar system maps, rising and setting times for planets, deep sky object catalogs, and even printable planispheres and astrolabes, all tailored to their geographic location.
http://davidmalin.com/fujii/fujii_index.html
A stunning image gallery showcasing the complete Akira Fujii and David Malin Images (DMI) collection of astrophotography, organized into categories including constellations, Milky Way, star trails, solar eclipses, comets, and aurorae. The collection features wide-field photographs of the southern sky taken from Australian observatories, capturing objects like the Southern Cross, Carina Nebula, and Comet McNaught with remarkable detail.
https://saguaroastro.org/
The Saguaro Astronomy Club is an Arizona-based amateur astronomy organization that has been hosting star parties, outreach events, and observing programs since 1977. Members can find observing lists, award programs, novice guides on eyepieces and binoculars, newsletters, and a full calendar of events including the Grand Canyon Star Party and the Arizona Spring Star Party.
http://acaoh.org/index.php
The Astronomy Club of Akron (ACA) is a 501(c)3 non-profit serving Summit County, Ohio, with star parties, solar observing events, monthly meetings featuring guest speakers, and access to a 16-inch observatory telescope. The site hosts event schedules, member astrophotos, newsletters, membership info, and links to live solar and lunar data resources.
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://deep-sky.co.uk/asterisms.htm
David Ratledge's guide to observing asterisms takes readers through a collection of star patterns visible through binoculars and small telescopes, complete with images and observing tips. Inspired by a 1998 Sky & Telescope article, this page celebrates overlooked celestial dot-to-dot patterns like Kemble's Cascade, the Coathanger, and the ET Cluster with genuine enthusiasm and hands-on detail.
http://sten.astronomycafe.net/the-astronomy-cafe
NASA scientist-educator Sten Odenwald has maintained this astronomy education hub for over 20 years, filling it with popular essays on cosmology, black holes, space travel, and the weird corners of nature. Visitors will find Q&A resources, blog posts on recent space discoveries, and details on his published books including a photo-filled history of space exploration through 100 iconic objects.
http://dibonsmith.com/graphics.htm
Created by Richard Dibon-Smith, this site provides graphics and reference information for all 88 officially recognized constellations, from Andromeda to Vulpecula. Each constellation gets its own dedicated page, making it a handy visual reference for amateur astronomers and sky-watchers.
http://setileague.org/
The SETI League is a nonprofit membership organization dedicated to the privatized electromagnetic search for extraterrestrial intelligence, coordinating amateur radio astronomers worldwide in the hunt for signals from other civilizations. The site offers extensive technical resources covering antennas, receivers, and software, alongside publications, press releases, and the popular "Ask Dr. SETI" column.