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://asliclub.org/
The Astronomical Society of Long Island (ASLI) is an amateur astronomy club that holds weekly meetings at the Vanderbilt Planetarium in Centerport, NY, with Zoom broadcasts available for remote attendees. Visitors can join observing sessions, get telescope advice, and explore the night sky alongside dedicated hobbyist astronomers without needing to own any equipment.
http://okcastroclub.com/
The Oklahoma City Astronomy Club, founded in 1958, is a 501(c)(3) nonprofit serving amateur astronomers in the Oklahoma City area with star parties, public outreach, an observatory, and the prestigious Okie-Tex Star Party. Members enjoy access to club telescopes, a library, a newsletter called the Gazette, and opportunities to contribute real scientific data to the astronomical community.
http://lakes.chebucto.org/ZOOBENTH/BENTHOS/benthos.html
A comprehensive scientific reference on freshwater benthic ecology and aquatic entomology, covering macroinvertebrate taxa from mayflies and dragonflies to beetles and caddisflies across dozens of detailed chapters. Produced by the Soil and Water Conservation Society of Metro Halifax, this site offers taxa tolerance values, biological monitoring protocols, and research reports focused on freshwater ecosystems in Nova Scotia and beyond.
http://lightandmatter.com/binosky/binosky.html
BinoSky, created by Benjamin Crowell, is a comprehensive guide to stargazing with binoculars, organizing the best celestial objects to observe by region of sky and season. Visitors will find detailed entries on open clusters, globular clusters, nebulae, and galaxies visible through binoculars, complete with sky maps and a data table compiled by SEDS contributor Hartmut Frommert.
https://mathgenealogy.org/
The Mathematics Genealogy Project is a massive academic database tracking the doctoral advisor lineages of mathematicians worldwide, with over 337,000 records linking students to their advisors across generations. Hosted by NDSU in association with the American Mathematical Society, it lets you trace the intellectual ancestry of virtually any mathematician back through history.
http://blackcanyonastronomy.com/
The Black Canyon Astronomical Society (BCAS) is an amateur astronomy club serving Western Colorado, offering public meetings, star parties, dark sky preservation efforts, and outreach programs to schools and community groups. The site features a calendar of events, astrophotography gallery, observing highlights, and information on joining the Astronomical League.
https://www.qsl.net/vk3te/Packet.html
Peter Brennan (VK3TE) runs this page dedicated to his packet radio BBS operations in Victoria, Australia, where he serves as sysop for multiple nodes including VK3TE and VK3SPB, connecting to an extensive international packet network. The site details his RF feeds to Melbourne-area BBS stations, AXIP/AXUDP partnerships spanning Australia, New Zealand, Europe, and North America, and offers telnet access for users wanting to join the network.
https://birdlist.org/index.htm
BirdList.org is a comprehensive global reference cataloging over 10,000 bird species across 200 countries, with data coded for abundance, breeding, migration, wintering, and endemic status. Run by professional biologists affiliated with the World Institute for Conservation and Environment, the site also offers bird tour listings for destinations like Peru, Ecuador, Ethiopia, and Uganda, with species lists available in multiple languages.
https://qsl.net/yo3kaa
The Romanian Amateur Radio Federation's web presence serves as a gateway to the official site for Romania's national amateur radio organization. Visitors are automatically redirected to the federation's main site, which represents the governing body for ham radio operators across Romania.
http://kusastro.kyoto-u.ac.jp/vsnet
VSNET is an international mailing list network based at Kyoto University dedicated to real-time alerts and collaborative observation of variable stars, cataclysmic variables, novae, supernovae, and X-ray binaries. Hosting decades of light curve archives from AFOEV observations and ongoing amateur-professional collaboration campaigns, it serves as a serious citizen science hub for variable star astronomy worldwide.