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://ncarrl.org/ares
The official site for North Carolina ARES (Amateur Radio Emergency Service) and AUXCOMM, coordinating amateur radio operators across all 100 NC counties for emergency communications support. It features a comprehensive county-by-county coordinator directory, training requirements, FEMA integration guidelines, and links to ARRL emergency planning documents.
http://k1kkm.org/
K1KKM is a personal amateur radio operator's site identified by the distinctive callsign in the domain name. Though the page text is minimal, the callsign format strongly suggests a ham radio enthusiast sharing their station and hobby activities.
https://astronomy.swin.edu.au/cosmos
COSMOS is a comprehensive astronomy encyclopedia produced by research astronomers at Swinburne University's Centre for Astrophysics and Supercomputing, covering topics from the Planck Length to galaxies for a general but detail-hungry audience. The encyclopedia is an evolving reference used by major astronomy outlets including Universe Today, Astronomy Cast, and Astronomy Picture of the Day, making it a trusted hub for astronomical knowledge.
https://www.qsl.net/lz1iii/html/1001link.html
A massive curated directory of amateur radio links maintained by LZ2HM, covering everything from ARRL resources and antenna plans to SSTV, ATV, antique radios, aurora monitoring, and weather resources. With over 1,300 links organized into dozens of categories, it serves as a comprehensive reference hub for ham radio operators of all interests.
http://cometography.com/
Cometography.com is a scholarly reference site originally built by Gary W. Kronk, companion to his six-volume Cambridge University Press book series, offering in-depth historical data on periodic and notable comets throughout history. Now maintained by José J. Chambó, the site preserves and expands Kronk's decades of comet research for astronomers and enthusiasts alike.
https://mainearrl.org/
The official Maine Section page for the American Radio Relay League covers everything local hams need, including district info, repeater listings, emergency communications nets, and an upcoming hamfest convention in Augusta. Resources for mentors (Elmers), club listings, EMCOMM testing, and multiple nets like the Maine Seagull Net and Maine Public Service Net make this a practical hub for amateur radio operators across the state.
http://greencountryhamfest.org/
Green Country Hamfest, Inc. organizes the annual amateur radio hamfest held at the Claremore Expo Center in Claremore, Oklahoma. The site provides information about this West Gulf Division event, serving ham radio enthusiasts from the region.
https://dominiccook.xyz/
Dominic Cook's personal site collects his explorations in mathematics, number theory, measure theory, and speculative metaphysics alongside creative web projects like 88x31 webpins, glitch art, and calculators. The mix of rigorous mathematical writing and old-web aesthetics makes it a quirky, intellectually curious corner of the indie web.
http://mistisoftware.com/astronomy/index.htm
Misti Mountain Observatory is an amateur astronomy site featuring stunning astrophotography captured with a 32-inch Ritchey-Chretien telescope in Arizona, covering galaxies, nebulae, star clusters, and solar system objects. The site includes detailed equipment notes, film and CCD imaging data, conference listings, and even a specialized app that lets blind and visually impaired users explore astronomical images through musical tones.
https://astronomyinyourhands.com/
Created by Chris Hilder, Astronomy In Your Hands offers free hands-on astronomy activities for classrooms and home learners, including a well-known downloadable Star Wheel planisphere for identifying stars with minimal equipment. The site earned the prestigious Griffith Observatory Star Award and provides low-tech, DIY-friendly resources suited for kids, students, and teachers alike.