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)
http://capitalastronomers.org/
The National Capital Astronomers is a Washington D.C. metro area nonprofit astronomy club founded in 1937 at the US Naval Observatory, offering monthly star talks, public telescope events at Rock Creek National Park, and science fair outreach programs. Members and visitors can find meeting lecture videos, telescope-making workshop info, stargazing tips, and membership details for this long-running amateur astronomy society.
https://flintriverastronomy.org/
The Flint River Astronomy Club (FRAC) is a Georgia-based astronomy club serving the Griffin area, hosting monthly meetings, public observing events at Indian Springs State Park, and club observing weekends at Joe Kurz WMA. Members have access to observing lists, tools, national awards, newsletters, and articles, making this a well-rounded hub for amateur astronomers in the region.
http://www.actonastro.com/
ActonAstro is a hobbyist astronomy site built by a California stargazer who went from a beginner 60mm refractor to a full backyard observatory with a Celestron 9.25-inch scope. Visitors will find astrophotography galleries, equipment reviews, polar alignment guides, and personal weather station data, all rooted in a genuine passion for the night sky.
https://futuretimeline.net/beyond.htm
FutureTimeline.net is an ambitious speculative reference site that maps out predictions for humanity and the universe across centuries, millennia, and beyond, covering topics from AI and nanotechnology to the far future of the cosmos. Organized as a detailed chronological timeline with supporting blogs, data trends, and artwork, it offers a sweeping vision of where science and civilization may be headed.
https://www.qsl.net/w1ee
John Sabini (WB1GRB) runs this personal ham radio page from Stamford, Connecticut, sharing his Advanced Amateur Radio License activities including repeater frequencies, simplex phone patch info, and New England frequency listings. A snapshot of early 2000s amateur radio culture in southwestern Connecticut, the site also links to local emergency communications groups like WECA and GNARC Norwalk.
https://nssl.noaa.gov/users/brooks/public_html/tornado
Harold Brooks of NOAA's National Severe Storms Laboratory presents a detailed statistical analysis of tornado climatology in the United States, examining frequency, death rates, and the challenges of detecting climate-related trends in the historical record. The site features data visualizations and Markov chain modeling of significant tornado days, with a particular focus on putting the large 1998 tornado death toll into historical perspective.
https://shallowsky.com/moon/moonlinks.html
A comprehensive curated link collection for amateur lunar observers, gathering moon maps, photographic atlases, observing guides, and software tools from across the early web. Part of the broader Hitchhiker's Guide to the Moon project at Shallow Sky, it serves as an invaluable jumping-off point for anyone wanting to study the moon's features in depth.
https://afvl.li/
The Amateurfunk Verein Liechtenstein (AFVL) is the official amateur radio club of Liechtenstein, founded in 1986 and serving operators in the HBØ callsign region. The site covers club activities, DMR and FM repeaters, WinLink access, emergency communications, AREDN mesh networking, and upcoming events like POTA outings and monthly meetups.
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://skyhound.com/sh/dso_guide.html
Skyhound's Guide to Deep Sky Objects is a comprehensive reference covering every major category of deep sky objects, from open star clusters and globular clusters to quasars and gravitational lenses. Each section explains what the objects are, how they appear through a telescope, and highlights notable examples like the Veil Nebula, Einstein's Cross, and the Pleiades.