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://ptable.com/
Ptable is a richly interactive periodic table created by Michael Dayah, offering property trend visualization, 3D orbital diagrams, isotope data, and compound mixing tools for all 118 elements. Available in dozens of languages and regularly updated, it serves as a go-to reference for students, educators, and chemistry enthusiasts alike.
http://abmedia.com/astro
Chris Cook's extensive astrophotography portfolio spans nearly four decades of celestial imaging, featuring deep sky objects, comets, eclipses, auroras, and stunning nightscape photography captured on both film and digital equipment. With NASA APOD features, astrophotography workshops, and a vast archive organized by technique and subject, this is a remarkable showcase of dedication to the craft.
https://qsl.net/n2jac/jota99/jota99.html
N2JAC documents their participation in Jamboree On The Air (JOTA) 1999, an annual event where Scouts around the world connect via amateur radio, held at Webster Park in Webster, New York. The page is a photo gallery featuring fellow operators like John W3OAB and Irv AF2K, offering a snapshot of grassroots ham radio community events from the late 1990s.
https://illinoiswildflowers.info/
Created by Dr. John Hilty, Illinois Wildflowers is a comprehensive botanical reference covering prairie, woodland, wetland, savanna, and weedy wildflowers native to Illinois, complete with plant-feeding and flower-visiting insect databases. The site's depth is remarkable, extending beyond flora to include vertebrate animal interactions, botanical and ecological terminology, and detailed photo documentation built over nearly two decades.
http://uacnj.org/
The United Astronomy Clubs of New Jersey (UACNJ) operates multiple observatories at Jenny Jump State Forest and hosts regular public stargazing nights, meteor shower events, and astronomy programs for all ages. The site serves as a hub for member clubs, event scheduling, live sky cameras, newsletter archives, and donation drives for new observatory construction.
https://owlsp.com/
Wesley Luginbyhl's storm chasing archive spans over two decades of tornado outbreaks, supercells, and severe weather events across Texas, Oklahoma, Kansas, and beyond. Packed with chase accounts organized by date and location, plus landscape photography, aurora shots, and live chase cam resources, this site is a compelling record of life on the storm-chasing circuit.
https://c2a.astrosurf.com/english/information.htm
C2A is a feature-rich planetarium software created by Philippe Deverchere, designed for both amateur and professional astronomers who need precise astrometric and photometric capabilities. The site documents the software's extensive support for star catalogues including Hipparcos, Tycho-2, and UCAC4, as well as deep sky object catalogues, asteroid and comet tracking, and tools for predicting occultations and sunrise/sunset times.
https://flame.org/~cdoswell/chasesums/chasesums.html
Chuck Doswell's storm chasing page chronicles over three decades of tornado pursuit, beginning with his first chase in April 1972 and including detailed logs, historical accounts, and safety advice drawn from genuine scientific expertise. Packed with chase summaries, photography links, and connections to fellow chasers and meteorologists, this is a deep and personal record from one of the field's most experienced practitioners.
http://hamradio.de/
Hamradio.de is a German-language community hub for amateur radio enthusiasts, offering a fleamarket for used equipment, forums, contesting resources, club directories, and software. With sections dedicated to awards, DX, and contests, it serves as a comprehensive gathering point for the German-speaking ham radio community.
http://yearinspace.com/the-week-in-space
The Year In Space is a weekly online calendar that highlights space history, sky events, and astronomical milestones, pairing each entry with detailed write-ups and NASA imagery. Each week features a featured topic such as the discovery of Ceres or the Cassini mission, alongside a day-by-day calendar of notable birthdays, launches, and celestial events.