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://rocksandminerals4u.com/
Rocks and Minerals 4U is a comprehensive educational resource covering geology topics including rock formation, mineral identification, plate tectonics, and the rock cycle, with dedicated pages for igneous, metamorphic, and sedimentary rocks. Designed for collectors, students, homeschoolers, and teachers, the site offers lesson plans, crossword puzzles, photo galleries, and even a shop for rock and mineral specimens.
https://qsl.net/ke6wuk
A QSL.net-hosted personal page for amateur radio operator KE6WUK, part of the popular free web hosting service dedicated to ham radio enthusiasts. The directory index is essentially empty or inaccessible, offering no visible content beyond a bare file listing.
https://coral.shoes/
Xenia (coral) is an electrical engineering student and licensed ham radio operator (SA6NYA) at Chalmers University who shares her photography, programming experiments, and radio hobby on this personal site. Highlights include a film photography album, clever JavaScript-free web experiments, a brainfuck calculator, and a self-built interactive Morse code trainer she made while learning CW.
https://mo-www.cfa.harvard.edu/OWN/about.html
MicroObservatory is an internet-controlled robotic telescope network developed by scientists and educators at the Harvard-Smithsonian Center for Astrophysics, designed to let students across the country capture real deep-sky images from their classrooms. Visitors can control telescopes remotely, analyze astronomical images, and access educational projects tied to NASA's educational mission.
https://spiritone.com/~nordlund/arrg.html
The Amateur Radio Relay Group (ARRG) is an Oregon-based 501(c)(3) non-profit that has served the amateur radio community since 1977, operating the statewide K7RPT Repeater System with eighteen-plus VHF and UHF repeaters. The organization provides emergency communications support to search and rescue teams, county sheriff offices, and first responders across Oregon, with digital capabilities including DMR and Yaesu System Fusion.
https://3towers.com/
The Grasslands Observatory, owned by Tim Hunter and directed by James McGaha, is a working astronomical observatory in operation since 1985 that offers an extensive image gallery covering Messier objects, Arp galaxies, Barnard objects, Caldwell objects, comets, asteroids, and more. With decades of astrophotography, essays on getting started in amateur astronomy, and remote telescope operations, this site is a rich resource for serious backyard astronomers.
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.
http://wikisky.org/
WikiSky.org is an interactive online sky map that lets users explore stars, galaxies, nebulae, and constellations through a virtual telescope interface with support for over 15 languages. The platform combines user-contributed content with professional astronomy data, featuring astro photography, science news, blogs, and a community forum for stargazers worldwide.
http://scarc.com/
SCARC appears to be the website for an amateur radio club, offering resources and information for ham radio enthusiasts in its region. Club-based amateur radio sites like this typically feature member info, repeater details, licensing resources, and local on-air event announcements.
https://itis.gov/
ITIS is the official Integrated Taxonomic Information System, a partnership between U.S. federal agencies and global specialists providing authoritative scientific names and taxonomic classifications for plants, animals, fungi, and microbes worldwide. Researchers and biodiversity professionals can search by common name, scientific name, or TSN identifier, access hierarchical taxonomic reports, and download the full database for integration into their own projects.