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://m0yng.uk/
Christopher M0YNG is a radio amateur based in Gloucestershire whose personal site covers amateur radio, solar and battery tracking, self-hosted tech, and small computing projects like the Penkesu Tiny Computer. The site is notably available via Gopher, Gemini, and Tor in addition to HTTP, making it a fascinating example of smolnet philosophy in practice.
https://openrepeater.com/
The OpenRepeater Project is an open-source initiative to build a low-cost, Linux-based amateur radio repeater controller using single-board computers like the Raspberry Pi. Managed by N3MBH, the site offers downloads, a knowledge base, setup guides, and community forums for ham radio operators looking to build their own duplex repeater systems.
http://hamuniverse.com/hamnews.html
Hamuniverse.com aggregates the latest ham radio news from major worldwide sources including ARRL, QRZ.com, Southgate ARC, and Amateur Radio Newsline, all from a single convenient page. Part of a larger amateur radio resource site, this news hub keeps operators informed on contests, satellite activity, licensing, and club events happening across the global ham radio community.
https://www.qsl.net/dx1cw
The official web home of CW Philippines (Communications World of Amateurs Philippines Inc.), a ham radio club based in Manila that documents DXpeditions to Philippine islands including Batan, Marinduque, and Lubang. The site features expedition photo galleries, contest results, QSL information, membership resources, and articles about amateur radio culture and leadership in the Philippines.
https://astrotulsa.com/
The Astronomy Club of Tulsa is a non-profit organization that has been bringing astronomy to Oklahoma residents since 1937, operating its own observatory southwest of Tulsa near Mounds and hosting regular public stargazing events. Visitors can find event schedules, monthly newsletters, sky maps, and resources for both beginners and experienced astronomers.
https://ai5.mx/
Michael Burkhardt (AI5MX) runs this personal ham radio blog covering gear reviews, operating logs, QSL cards, Morse code adventures, and FCC news. Visitors will find mirrored Mastodon microposts, downloadable resources, and a genuine indie-web spirit connecting the amateur radio community.
http://xmlog.com/
XMLog is a free amateur radio logbook application for Windows, created by Michael McAmis (W1ECT), offering flexible log searching, awards tracking for DXCC, WAZ, and WAS, LoTW integration, and callbook lookups. The site serves as the official download and support hub for the software, with documentation, beta releases, and a linked community group on groups.io.
http://rocklandastronomy.com/
The Rockland Astronomy Club (RAC) is one of the East Coast's premier nonprofit astronomy education organizations, hosting star parties, lectures, dark sky observing sessions, and the renowned Northeast Astronomy Forum (NEAF). Visitors can find event schedules, observing locations at New York state parks, and information about joining a vibrant community of amateur astronomers.
https://aprs.org/
The original home of APRS (Automatic Packet Reporting System), a ham radio digital communications protocol developed by Bob Bruninga (WB4APR) that allows operators to share real-time position, weather, messages, and event data over a single national channel. Now maintained for historical purposes, the site archives over two decades of APRS development including presentations, technical guides, satellite projects, and links to balloon launches and digipeater resources.
http://cvafresno.org/
The Central Valley Astronomers is an amateur astronomy club based in Fresno, California, welcoming everyone from beginners to seasoned professionals with star parties, astrophotography, and educational meetings. The site includes a club calendar, membership info, a Young Astronomer Program, star party etiquette guides, light pollution resources, and tips on purchasing equipment.