Videos
Press play on the universe.
Short explainers, quick shorts and full lessons — each with captions, a transcript, chapters and a link to the guide that goes deeper.
Scale 02 · Solar System Explainer
[0:00] [MM:SS] CC
How big is the Solar System?
A scale walk from the Sun to Neptune, with sizes and distances kept true.
Chapters
01 Introduction [0:00]
02 The key idea [0:00]
03 How we know [0:00]
04 Recap [0:00]
Every video has captions and a full transcript.
Video Library
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Frequently asked questions
- Yes. Every SpaceTheGuide video includes closed captions (CC) and a full text transcript. This follows the WCAG 2.1 guideline 1.2.2 for pre-recorded audio content.
- Shorts are under 3 minutes — one idea, answered fast. Explainers are 5–10 minutes — they build the concept from first principles. Lessons are 15–30 minutes and go into full depth, including the maths. Each type links to the corresponding written guide for further reading.
- For raw mission footage, NASA TV streams live. For scientific depth, the ESO YouTube channel and HubbleSite publish regularly. SpaceTheGuide videos add plain-language commentary and a linked guide.