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://cobaltpet.blogspot.com/
Run by a Northern California hobbyist known as 'weatherall', this blog chronicles shortwave and mediumwave radio listening with detailed reception reports, SIO signal quality codes, station identifications, and portable receiver reviews. Covering international broadcasters, number stations, utility signals, NDB logs, and DXing tips, it's a thorough record of the hobby for fellow shortwave enthusiasts.
https://www.astronomy.org/
Gary A. Becker's astronomy hub at Moravian University offers original astrophotography, weekly starwatch articles, and curated links to astronomy, weather, and science resources. Highlights include stunning lunar eclipse photos and decades of accumulated observational content dating back to 1996.
https://observers.org/
The SF Bay Area Astronomy Connection (TAC) is an informal network for amateur astronomers across the greater San Francisco Bay Area, connecting observers without the formality of dues, officers, or bylaws. The site features an extensive list of observing sites throughout the region, curated observing lists, equipment guides, and resources for both beginners and seasoned stargazers.
https://oiseaux.net/index.en.html
Oiseaux.net is a comprehensive ornithological portal covering more than 10,000 bird species worldwide, complete with species sheets, photos, drawings, birdsongs, and thematic files for all skill levels. The site also features identification tools powered by artificial intelligence, birdsong quizzes, games, a forum, and curated news from the ornithological world.
https://w4zt.com/
Tony King's W4ZT memorial site covers his extensive amateur radio activities, including repeaters, antenna construction, power supply modifications, and DXpeditions. Now preserved as a tribute after Tony's passing in 2009, the site offers a wealth of technical resources and personal projects from a dedicated ARRL life member based in the Atlanta area.
https://www.qsl.net/n1irz
Dave Finley (N1IRZ) shares his deep expertise in amateur radio through articles on Morse Code training, radio history, and radio astronomy, including information about his published book 'Morse Code: Breaking the Barrier.' The site covers an impressive range of topics from the Koch Method of CW training to QRP radio kits, six meters, and the history of ham radio in Socorro, New Mexico.
https://barriearc.com/
The Barrie Amateur Radio Club (VE3GCB) is a Canadian ham radio club based in Barrie, Ontario, offering monthly meetings, beginner licensing courses, a builders group, and a variety of on-air activities including DMR and HF propagation. The site covers club repeater info, AUXCOMM emergency communications, 3D printing projects, and community events, making it a rich hub for local amateur radio operators of all experience levels.
https://ipac.caltech.edu/2mass/gallery/index.html
The 2MASS Atlas Image Gallery at IPAC (California Institute of Technology) showcases stunning false-color infrared composite images from the Two Micron All Sky Survey, covering everything from solar system objects and nebulae to galaxies and star clusters. Compiled from three infrared wavelength bands mapped to visible colors, this publicly released collection serves as both a scientific resource and a visually compelling window into the infrared universe.
https://wwcr.com/
WWCR is the official site for World Wide Christian Radio, a shortwave broadcasting station based in Nashville, Tennessee, operating four 100,000-watt transmitters across 10 channels to reach a global audience. Visitors can browse program schedules, listen online, find transmitter frequencies, and learn about buying airtime on one of the most powerful shortwave religious and talk radio broadcasters in North America.
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.