Science & Nature
1439 sites
Subcategories:
- Astronomy & Space (396)
- Chemistry (8)
- Earth Sciences (26)
- Biology (79)
- Physics (30)
- Mathematics (59)
- Weather & Climate (104)
- Amateur Radio (682)
- Electronics (47)
https://rdelsol.com/
Rancho Del Sol Observatory is a personal astronomy site featuring articles and updates about space exploration, including NASA's Mars rover Perseverance and planetary science topics like Uranus. The site blends historical context about astronomy's milestones with news-style posts covering recent developments in space exploration.
https://dsimanek.vialattea.net/home.htm
Donald Simanek, a physics professor, has assembled a sprawling collection of resources covering physics puzzles, perpetual motion machines, pseudoscience debunking, creationism criticism, and science humor. Highlights include the Museum of Unworkable Devices, illustrated lectures, and a rich archive of skeptical and educational content that has earned recognition as one of the top skeptical websites on the web.
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.
http://scarcnj.org/
The Sussex County Amateur Radio Club (SCARC) is a New Jersey-based ham radio club operating under call sign W2LV, dedicated to education, public service, and advancing the amateur radio hobby. The site features meeting schedules, repeater listings, net information, contest announcements, and details about their annual Hamfest at the Sussex County Fairgrounds, which doubles as the 2025 ARRL Hudson Division Convention.
https://w3eax.umd.edu/
W3EAX is the Amateur Radio Association at the University of Maryland, a student club with roots going back to 1933 and an ARRL-affiliated callsign. Their well-equipped shack includes HF, UHF/VHF, Amateur Television, and satellite gear, plus a full electronics workbench for hands-on radio experience.
http://galleries.com/
Amethyst Galleries' Mineral Gallery, self-proclaimed 'The First Internet Rock Shop,' is a comprehensive reference covering minerals, rocks, crystals, gemstones, and birthstones organized by chemical class and physical properties. With detailed explanations of mineralogy, crystal formation, and browsable indexes by name and category, it has been an authoritative online mineral encyclopedia since 1995.
https://cosmotography.com/index.html
Cosmotography is the astrophotography showcase of R. Jay Gabany, a 2010 AAS Chambliss Amateur Achievement Award recipient who captures stunning CCD images of galaxies, nebulae, star clusters, and more using high-end telescopes across multiple observatories worldwide. The gallery features meticulously processed multi-exposure color images taken through remotely controlled observatories in California, Kitt Peak Arizona, and Melbourne Australia, making it a remarkable window into deep-sky imaging at the amateur-professional frontier.
https://fourmilab.ch/solar/solar.html
Solar System Live is an interactive web orrery created by John Walker that lets visitors visualize the entire solar system or inner planets at any date, time, and viewpoint they choose. Users can track asteroids and comets using orbital elements, generate custom star maps, and save personalized configurations as bookmarks, making it a genuinely useful tool for amateur and serious astronomers alike.
https://delmarvastargazers.org/
The Delmarva Stargazer Society was an amateur astronomy club founded in 1993 on the Delmarva Peninsula that ran star parties at three dedicated dark sky sites until disbanding in 2019. This archived site preserves the club's history, newsletters, by-laws, and meeting minutes, and is maintained by member Michael Lecuyer who still brings telescopes out for public viewing in Wyoming, Delaware.
http://jgiesen.de/GeoAstro/GeoAstro.htm
Juergen Giesen's GeoAstro Applet Collection offers more than 65 interactive Java applets for tracking the precise positions of the sun, moon, and planets, including sundials, moon phases, eclipse data, and sky maps for any location on Earth. Featured in Sky & Telescope magazine and honored with the Griffith Observatory Star Award, this site is a remarkable labor of love for amateur and professional astronomers alike.