How Starlink Sends Internet Through Space With Lasers

A flat Starlink dish on a cabin roof is tracking a satellite moving at about 27,000 km/h (17,000 mph), and nothing on it moves to follow it. This is how Starlink satellite internet really works: the phased-array dish that steers its beam with timing, the trip your data takes, and the laser links between satellites in orbit. We follow one connection from the roof up to orbit, across the laser mesh and back down to Earth, then into the money. Starlink now makes up about two-thirds of every working satellite, it is the only part of SpaceX that makes an operating profit, and SpaceX says cash from its core businesses helps fund Starship, the rocket that carries the next satellites. Chapters 0:00 Intro: Starship Flight 14 0:35 Cold Open 1:11 Why Space Internet Was Slow 2:39 The Dish That Aims Without Moving 4:23 The Trip Your Data Takes 5:24 Lasers in the Dark 6:59 Two-Thirds of the Sky 9:05 Who Pays for the Rocket Sources (numbers match the [n] markers on screen) [1] Tanveer, Puchol, Singh, Bianchi & Nithyanand, "Making Sense of Constellations: Methodologies for Understanding Starlink's Scheduling Algorithms", arXiv (Jul 1, 2023): https://arxiv.org/abs/2307.00402 [2] FCC Space Bureau, Public Notice DA 26-113, SpaceX's application for orbital data centers (Feb 4, 2026): https://docs.fcc.gov/public/attachmen... [3] SpaceX, Form S-1 registration statement (May 20, 2026): https://www.sec.gov/Archives/edgar/da... More sources SpaceX, Starship Flight 14 (Sept 28, 2026): https://www.spacex.com/launches/stars... Starlink, V3 satellites (Jul 2026): https://www.starlink.com/updates/star... SpaceX, 424B4 prospectus (Jun 11, 2026): https://www.sec.gov/Archives/edgar/da... SpaceX, 10-Q for Q2 2026 (Aug 4, 2026): https://www.sec.gov/Archives/edgar/da... Starlink, Standard kit spec sheet (Feb 26, 2026): https://www.starlink.com/public-files... Starlink, beam switching: https://www.starlink.com/updates/star... Oleg Kutkov, Starlink terminal teardowns (2024-2026): https://olegkutkov.me Mohan et al., WWW '24 (May 2024): https://arxiv.org/abs/2310.09242 ESA, Types of orbits: https://www.esa.int/Enabling_Support/... FCC, Measuring Broadband America, 2016 fixed report Travis Brashears (SpaceX), SPIE Photonics West (Jan 30, 2024), via PCMag: https://www.pcmag.com/news/starlinks-... Corning, SMF-28 Ultra fibre datasheet (Jul 2025) Jonathan McDowell, active satellites (Sept 30, 2026): https://planet4589.org/space/stats/ac... Zwicky Transient Facility satellite-streak study, ApJL 924 L30 (2022): https://arxiv.org/abs/2201.05343 DarkSky International, open letter to SpaceX (Mar 5, 2026): https://darksky.org/news/open-letter-... Michael Nicolls (Starlink) on X, orbit lowering (Jan 1, 2026) CRAN Namibia, Starlink licence decision (Mar 24, 2026) United, Hawaiian Airlines and Qatar Airways, Starlink Wi-Fi announcements (2024-2025) Music Licensed from Storyblocks: "A Point Before The Infinite", "Flight - Part 1" and "Flux" by bzur; "Lights Cinematic Mood" by OKO; "Threads Of Long Ago" by Eul. Footage and credits SpaceX webcast excerpts (Starship Flight 14, Sept 28, 2026; Starlink Mission, May 2019), used for commentary under fair use. Illustrative footage and sound effects: Storyblocks. Server room ambience: freesound_community via Pixabay. Documents shown: arXiv (Tanveer et al.), FCC, SpaceX S-1 (SEC). Map data: Natural Earth (public domain). Animation and 3D renders made for this video. #Starlink #SpaceX #SatelliteInternet