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://nccc.cc/
The Northern California Contest Club (NCCC) is an ARRL-affiliated amateur radio club founded in 1970, with over 300 active members dedicated to competitive radio contesting, DXing, and antenna construction. The club boasts an impressive record of contest wins including 17 ARRL Sweepstakes unlimited club competition victories and has been running the California QSO Party since 1974.
https://mineralienatlas.de/
Mineralienatlas is a comprehensive German-language encyclopedia and community platform covering mineralogy, geology, paleontology, and mining, supported by thousands of members worldwide. Visitors can search minerals by chemical properties, browse fossil and mineral portraits, explore collecting locations, and dive into crystallography and systematic mineralogy.
https://qsl.net/wo8hio
The Maumee Valley Contest Club is an amateur radio organization based in the Maumee Valley region, focused on competitive ham radio contesting and DX activities. The site serves as a hub for members and visitors, offering links to major contesting resources, propagation tools, contest calendars, and DX bulletins.
http://pasnola.org/
The Pontchartrain Astronomy Society, established in 1959, is a non-professional astronomy club serving Southeast Louisiana with events, observing sites, forums, and newsletters. Members gather to discuss celestial objects, attend star parties, and access resources like Clear Sky Charts and ISS sighting schedules for the New Orleans area.
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.
https://w5ks.org/
The Lawton Fort Sill Amateur Radio Club (W5KS) is a nonprofit ham radio club based in Lawton, Oklahoma, serving the community since 1949 with a focus on disaster preparedness, STEM education, and operator training. Visitors can find meeting schedules, upcoming net frequencies, free Morse code training sessions, and license testing events hosted by this ARRL-recognized club.
https://www.was.org.nz/useful-links
The Wellington Astronomical Society maintains this curated links page connecting visitors to astronomy resources across New Zealand and beyond, from national societies to educational tools for children. Organized into regional and international sections, it serves as a handy gateway to observatories, sky guides, STEM activities, and fellow astronomy clubs throughout New Zealand.
https://1x1callsigns.org/
A dedicated resource for amateur radio operators looking to reserve FCC-authorized one-by-one (1x1) special event call signs for conventions, festivals, and other community celebrations. The site includes an FCC regulations guide, a searchable 1x1 callsign database, coordinator listings, and a reservation request system for temporary station operation.
https://starinabox.net/
Star in a Box is an interactive educational tool from Las Cumbres Observatory that lets you animate and explore the full lifecycle of stars across a range of solar masses using the famous Hertzsprung-Russell diagram. Visitors can watch how a star's brightness, size, surface temperature, and mass evolve over billions of years, with downloadable data tables for independent investigation.
https://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10
Hosted by Florida State University's National High Magnetic Field Laboratory, this interactive tutorial takes visitors on a visual journey from 10 million light-years away down to the subatomic level in successive powers of ten. The experience moves through galaxies, the solar system, Earth, a leaf, its cells, DNA, and finally protons and electrons, making the concept of scale tangible and awe-inspiring.