summer evening thunderstorm, an island universe nsite.buildtall.systems/summerstorm/ The recording the page plays is thunderstorm-1h-v1, one hour mixed by buildtall.systems from 57 field recordings, an original recording of katydids, and tones made in the mix. The mix and its use here are non-commercial. Twenty-two of the recordings carry a Creative Commons license that asks for credit; five of those also forbid commercial use: Night in nature, by quetzalcontla https://freesound.org/people/quetzalcontla/sounds/336602 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Ambience, Night Wildlife, A, by InspectorJ https://freesound.org/people/InspectorJ/sounds/352514 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ tree frogs, by onohobo https://freesound.org/people/onohobo/sounds/120807 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Frogs_02, by eyecandyuk https://freesound.org/people/eyecandyuk/sounds/34949 CC-BY-NC 3.0, https://creativecommons.org/licenses/by-nc/3.0/ soft wind noise in pine trees, by jgrzinich https://freesound.org/people/jgrzinich/sounds/329805 CC-BY-NC 3.0, https://creativecommons.org/licenses/by-nc/3.0/ Wind rustling in trees, by earthsounds https://freesound.org/people/earthsounds/sounds/101495 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Tree Rustle 3, by le_abbaye_Noirlac https://freesound.org/people/le_abbaye_Noirlac/sounds/129427 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Forest, strong wind through the leaves, by thorvandahl https://freesound.org/people/thorvandahl/sounds/184205 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Strong wind in trees, by alanmckinney https://freesound.org/people/alanmckinney/sounds/145231 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Medium Wind, by kangaroovindaloo https://freesound.org/people/kangaroovindaloo/sounds/205966 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ 05669 approaching storm, by Robinhood76 https://freesound.org/people/Robinhood76/sounds/269019 CC-BY-NC 3.0, https://creativecommons.org/licenses/by-nc/3.0/ Thunder - 2, by bone666138 https://freesound.org/people/bone666138/sounds/198858 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Indirect thunderclaps, no rain, by michieldb.nl https://freesound.org/people/michieldb.nl/sounds/217718 CC-BY-NC 3.0, https://creativecommons.org/licenses/by-nc/3.0/ Close Cracking Thunder, by tpetko https://freesound.org/people/tpetko/sounds/201104 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ thunder_clap_04, by Marth8880 https://freesound.org/people/Marth8880/sounds/199950 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Thunderclap, by inchadney https://freesound.org/people/inchadney/sounds/56564 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Donner2, by swuing https://freesound.org/people/swuing/sounds/37775 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ HeavyRain, by HerbertBoland https://freesound.org/people/HerbertBoland/sounds/31959 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Rain - 1, by bone666138 https://freesound.org/people/bone666138/sounds/198856 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ rain_thunder, by kabit https://freesound.org/people/kabit/sounds/104913 CC-BY-NC 3.0, https://creativecommons.org/licenses/by-nc/3.0/ Forest rain, by thorvandahl https://freesound.org/people/thorvandahl/sounds/184213 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ fdv_jour_de_pluie_2, by FaireDesVagues https://freesound.org/people/FaireDesVagues/sounds/103132 CC-BY 3.0, https://creativecommons.org/licenses/by/3.0/ Each was cut and mixed with the others. The other 35 recordings are dedicated to the public domain under CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/). The katydid recording and the tones are buildtall.systems' own. The prairie and the three bur oaks are built by the figure summereveningthunderstorm in projects/blender; the sky, the light and the textures are drawn in the page. The stars are the Bright Star Catalog, 5th Revised Edition (Preliminary Version), by D. Hoffleit and W. H. Warren, Jr., 1991, from the NASA HEASARC table heasarc_bsc5p, a public table: https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/tdat_files/heasarc_bsc5p.tdat.gz The page keeps each star's position, V magnitude and B-V color to V 6.0, in stars.json. The latitudes and longitudes of the time zones in zones.json come from the IANA time zone database, release 2026f, which is in the public domain: https://data.iana.org/time-zones/tzdata-latest.tar.gz The moon and the planets are computed in the page by Astronomy Engine 2.1.19, by Don Cross, MIT license, vendored under vendor/astronomy/ with its LICENSE.txt: https://github.com/cosinekitty/astronomy The galactic pole and center are the J2000 values of the IAU galactic coordinate system. three.js 0.186, MIT license, vendored under vendor/three/. A-Frame 1.7.1, MIT license, vendored under vendor/aframe/ with its LICENSE.txt. Controller and hand models, MIT license, served unmodified under vendor/aframe-assets/: oculus-touch-v3 (left.glb, right.glb) and generic-hand (left.glb, right.glb) from the immersive-web WebXR Input Profiles registry, packages/assets https://github.com/immersive-web/webxr-input-profiles Copyright (c) 2019 Amazon Copied from the mirror https://github.com/aframevr/assets, byte-identical by git blob. The registry notes that some assets portray the manufacturers' registered trademarks and that its license grants no permission to use those trademarks in derivative works or to suggest endorsement. The models are shown only to depict the user's own controller. Published by buildtall.systems under the brand key.