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://drisc.io/
Drisc.io is a personal blog and journal by a tech-minded creator who covers topics ranging from space exploration (KSC visits, Crew-12) to Apple ecosystem projects like iPadtop setups and a menu bar app called Peak Streak. The mix of journal entries, blog posts, and a wiki makes it a compact but genuine slice of one person's geeky interests and creative projects.
http://hf.dxview.org/
Created by NG0E, HF+ is an interactive real-time propagation map that displays current amateur radio band conditions worldwide from 1.8 to 50.4 MHz, showing where contacts are likely based on your operating location. It draws live data from sources like WSPRnet, PSK Reporter, and the Reverse Beacon Network to indicate support for SSB, CW, and digital modes, and even predicts signal levels for the next 24 hours.
https://ei7gl.blogspot.com/2026/02/video-solar-cycle-25-expectations-in.html
John, EI7GL, runs this long-running amateur radio diary covering propagation experiments, solar cycle updates, and band activity across frequencies from medium wave to microwaves. The site is a treasure trove for radio enthusiasts, featuring detailed posts on DX contacts, digital modes, and radio science with an impressive archive of callsigns and events.
http://twisterdata.com/
TwisterData.com is a meteorological data tool built in 2008 by storm chasers David Demko and Donald Giuliano, offering RAP, NAM, and GFS weather model forecasts with detailed atmospheric parameters like CAPE, hodographs, helicity, and sounding data. Designed with a clean, data-first philosophy, it pulls from NOAA datasets and is especially valuable for storm chasers, meteorologists, and serious weather enthusiasts who need raw model output without distractions.
http://faqs.org/faqs/space
The faqs.org Space Index is a comprehensive archive of Usenet FAQs dedicated to astronomy and space topics, covering everything from acronyms and data sources to how to become an astronaut and controversial space questions. Maintained across dozens of indexed documents, it serves as a structured reference hub for space enthusiasts and researchers seeking archived FAQ documents from the early internet era.
https://m0pqa.com/
Pablo (M0PQA) runs this technical amateur radio blog covering hands-on projects like firmware recovery, AllStar node modifications, APRS gateways, and packet radio on Raspberry Pi. The posts are detailed and practical, making it a valuable reference for hams tackling real-world station challenges.
http://hamuniverse.com/hamnews.html
Hamuniverse.com aggregates the latest ham radio news from major worldwide sources including ARRL, QRZ.com, Southgate ARC, and Amateur Radio Newsline, all from a single convenient page. Part of a larger amateur radio resource site, this news hub keeps operators informed on contests, satellite activity, licensing, and club events happening across the global ham radio community.
https://jedaler.tripod.com/elec.html
Jedaler's Electronics Page, built by JaKab-Daniel, is a curated link collection focused on circuit schematics, microcontrollers, RF antennas, robotics, and hobby electronics projects. Visitors will find references to PIC microcontroller resources, Tesla-related circuits, xenon flash designs, and free energy machine plans alongside general electronics archives.
https://f6fbb.org/
F6FBB is the home of FBB, a well-known Packet-Radio BBS software used by amateur radio operators worldwide. The site serves as a resource hub for the FBB software project, covering packet radio bulletin board systems and related amateur radio digital communications.
https://planetary.chem.tufts.edu/Phoenix/index.html
A page dedicated to NASA's Phoenix Mars Scout Mission, hosted on a Tufts University chemistry server, featuring launch videos including a close-up NASA recording and a team footage from Cocoa Beach in August 2007. It offers a glimpse into the excitement surrounding the Phoenix lander's launch, which went on to study the Martian arctic soil.