Science
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NASA
The official site of the US space agency, with news, mission updates, imagery, and resources on space exploration and Ea…
Bartosz Ciechanowski
Deeply illustrated, interactive explainers on how things work -- gears, GPS, cameras, the internal combustion engine and…
Brilliant | Learn interactively
Interactive learning platform with hands-on courses in math, science, computer science, and data.
Encyclopaedia Britannica
The online edition of the venerable general encyclopedia, with fact-checked articles across history, science, and cultur…
National Snow and Ice Data Center
A research center's public site tracking sea ice, glaciers, and permafrost with data visualizations and plain-language c…
Nautilus
A science magazine pairing rigorous reporting with big-picture storytelling, one theme at a time.
The Feynman Lectures on Physics
Caltech's free online edition of Richard Feynman's legendary three-volume physics lectures, regarded as some of the best…
10,000 Year Clock
The story of the giant mechanical clock being built inside a mountain in west Texas, designed to tick for ten thousand y…
11011110
A long-running blog on geometry, graph theory, and algorithms, mixing notes on new research papers with mathematical cur…
1950 Census
The National Archives site for the 1950 US census, where you can search names and browse the original handwritten popula…
3 Quarks Daily
A curated intellectual blog surfacing interesting writing on science, philosophy, art, and literature, with original ess…
30DayMapChallenge
Home of the #30DayMapChallenge, where mapmakers make one themed map a day every November, with the daily themes, collect…
365tomorrows
A new piece of flash science fiction every day since 2005, with thousands of free short stories about robots, aliens, st…
3Blue1Brown
Grant Sanderson's home for visual mathematics, with animated lessons and interactive articles on linear algebra, calculu…
507 Mechanical Movements
A table of contents for the classic collection of 507 mechanical movements, each illustrated with an animation of gears,…
A Chaos of Delight
A photographic guide to the hidden world beneath our feet: springtails, mites, nematodes, pseudoscorpions and other soil…
A Cluttered Mind
A personal blog mixing math, anecdotes, and recipes, with posts that wander from puzzles and proofs to experiments in th…
A Computer Scientist in a Business School
Panos Ipeirotis's blog on crowdsourcing, data, and online markets, written as a computer scientist working behind enemy…
A Gentle Introduction to the Art of Mathematics
A free, open-source textbook introducing the foundations of mathematics, including logic, sets, functions and proofs, wr…
A Guide to Isaac Asimov's Essays
An annotated index to Isaac Asimov's science essays, organised by the collections in which they appeared, handy for trac…
A Particle Physics Course for High-School Students
CERN's free course introducing particle physics to teenagers, covering the Standard Model, accelerators and detectors wi…
A Selection of Los Alamos Rolodex Business Cards
A curated collection of old Rolodex business cards from Los Alamos, offered by the Center for Land Use Interpretation as…
A Sibilant Intake of Breath
The blog of a climate activist and science communicator, mixing commentary on climate and energy with photography and ha…
A Sign in Space
An art and science project that asks participants to decode the message the ExoMars Trace Gas Orbiter beamed to Earth to…
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