A curated directory of authoritative tools and open data for checking the evidence yourself. Every entry links to a primary source or a working tool — run the numbers, watch the passes, trace the routes, and confirm the claims on Empirical Earth firsthand.
This is a link directory, not a media host. Sources are chosen for authority and stability (universities, agencies, established tools). Links open in a new tab; if one moves, search its name to find the current home.
Live views of a round Earth
- DSCOVR EPICThe full sunlit disk of Earth, imaged every couple of hours from a million miles out at the L1 point. Step through a day and watch the whole globe turn.epic.gsfc.nasa.gov
- Himawari Real-time WebA live true-color full disk from the Himawari-9 weather satellite, parked 35,786 km over the Pacific. Spin and zoom the globe as it refreshes.himawari8.nict.go.jp
- NOAA GOES Image ViewerNear real-time GeoColor full-disk images from the GOES-East and GOES-West satellites in geostationary orbit over the Americas.star.nesdis.noaa.gov
- NASA WorldviewBrowse today’s Earth layer by layer from polar and geostationary satellites, with geostationary loops in ten-minute steps.worldview.earthdata.nasa.gov
- Live from the ISS (Sen, 4K)A continuous 4K view of Earth from cameras aboard the International Space Station, about 400 km up. The horizon is curved, all day, every day, from a camera you did not build.youtube.com/sen
Curvature & the horizon
- Metabunk Curve & Refraction CalculatorHow much a sphere hides at a given distance and eye height, with refraction — the tool behind “8 inches per mile squared” corrected.metabunk.org
- Walter Bislin — Earth Curvature CalculatorA detailed curvature, refraction, and mirage simulator; models exactly what a camera should see over water.walter.bislins.ch
- dizzib — Earth Curve CalculatorEnter a distance and eye height, get how much of a target hides below the horizon. This is the same calculator flat-Earthers reach for, so run their own numbers.dizzib.github.io
- Camera & Lens Field of ViewWork out the angle a lens sees and how large a distant object should appear. The math behind “zoom brings the sunk ship back” and telephoto-compression claims.scantips.com
- SCADACore RF Line of SightDrops two antennas on a map and profiles the terrain between them, factoring in Earth’s curvature, to show whether a radio path is clear or blocked by the bulge.scadacore.com
Maps & projections
- The True Size Of…Drag any country across the map to see how much Mercator distorts it — Greenland is not the size of Africa.thetruesize.com
- NASA G.ProjectorReproject world maps between dozens of projections, including the azimuthal equidistant (“Gleason”) map, to see each one’s trade-offs.giss.nasa.gov
- Map Projection TransitionsWatch the world morph smoothly between fifty-plus projections while the globe turns, showing how every flat map trades away something true.jasondavies.com
Sun, Moon & sky
- Stellarium WebA planetarium in your browser — check circumpolar stars, the southern sky, and where any body sits from any latitude.stellarium-web.org
- SunCalcSun position, sunrise/sunset times, and shadow lengths for any place and date — test the sundial math.suncalc.org
- timeanddate — EclipsesSolar and lunar eclipse predictions to the minute, worldwide, centuries ahead — and they arrive on schedule.timeanddate.com
- Stellarium (desktop)The full free planetarium for your computer. Set any location and date and check the southern sky, circumpolar stars, and eclipse timing against what the globe predicts.stellarium.org
- Day and Night World MapShows the day/night terminator, the twilight bands, and the points where the Sun and Moon sit directly overhead right now.timeanddate.com
- Xavier Jubier — Eclipse MapsClick any past or future solar eclipse to see its exact shadow path on a map, computed from orbital mechanics thousands of years out.xjubier.free.fr
Satellites & spacecraft
- Heavens-AbovePredicts ISS and Starlink passes for your exact location and time — go outside and watch them cross on schedule.heavens-above.com
- NASA Eyes on the Solar SystemReal-time 3D of spacecraft, planets, and the heliosphere, including where the Voyagers are now.eyes.nasa.gov
- N2YOLive real-time tracking for the ISS, Starlink, and thousands of other satellites, with pass predictions for your location.n2yo.com
- CelesTrakThe public catalog of orbital element sets (TLEs) for tracked objects. The raw data that every satellite tracker runs on.celestrak.org
- ISS Transit FinderPredicts when the ISS will cross the face of the Sun or Moon from your spot, down to the second and the few-km-wide ground path. Set up and photograph it yourself.transit-finder.com
- Trimble GNSS PlanningSky plot of the GPS, Galileo, GLONASS and BeiDou satellites above any location and time, the same ones your phone locks onto. Set the time to now and count what is overhead.gnssplanning.com
Earth’s interior & motion
- IRIS / EarthScope Seismic Waves ViewerAnimate real earthquakes through the planet: P-waves passing the core, S-waves stopped by the liquid outer core, and the shadow zones.iris.edu
- USGS Latest EarthquakesThe live global seismicity feed — the open arrival-time data that maps the layered interior.earthquake.usgs.gov
Physics you can run
- PhET — Gravity and OrbitsA University of Colorado sim: move the Sun, Earth, Moon, and a space station and watch gravity shape the orbits. Switch gravity off to see what holds it all together.phet.colorado.edu
- PhET — Gravity Force LabCavendish in your browser. Drag two masses together and read the attraction between them. This is the experiment that says gravity is a real force between ordinary objects, and you can run it in a tab.phet.colorado.edu
Live flight tracking
- ADS-B ExchangeUnfiltered live global flight tracker — trace real routes and altitudes, including polar and long-southern flights.adsbexchange.com
- FlightAwareFlight tracking, routes, and histories — check that published routings match great-circle geometry.flightaware.com
Watch — clear explainers
- Professor Dave ExplainsA science educator who walks through the physics behind common flat-Earth claims, from horizon drop to why we do not feel Earth’s motion.youtube.com
- SoundlyThe channel behind the Lake Pontchartrain footage, where a straight 24 km line of equal-height transmission towers visibly follows Earth’s curve.youtube.com
- VeritasiumDerek Muller’s science channel, strong on the physics of gravity, motion, and measurement that sits underneath the shape of Earth.youtube.com
- Scott ManleyCalm, technical explainers on orbital mechanics, satellites, and rockets — the real physics of how things move in space, from an astrophysicist.youtube.com
Related & peer resources
- MetabunkMick West’s evidence-first debunking forum. Home of the curvature calculator and detailed threads working through individual claims.metabunk.org
- FlatEarth.wsA peer debunking site that catalogs specific flat-Earth claims and answers each with sources. The name is tongue-in-cheek; it argues for the globe.flatearth.ws
- Library of Congress — Flat Earth bibliographyA scholarly reference list of flat-Earth books and articles across two centuries, first compiled by a Library of Congress science specialist.guides.loc.gov
- Wikipedia — Modern flat Earth beliefsAn encyclopedic overview of the modern movement, its history and claims, and the evidence against them, with wide references.wikipedia.org
- The Antarctic Treaty (full text)The 1959 treaty itself, from its Secretariat. Peaceful use, frozen territorial claims, and the Article VII rule that opens every base to inspection by any member nation. No clause bars travel.ats.aq
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