allseeing.space
Classroom edition. Narrated journeys through real space, with captions and teacher guides.
Narrated journey
Students learn that gravity is an attraction between all masses whose strength depends on mass and distance, and follow it from falling objects to orbits, the Sun, Jupiter, a supermassive black hole and Einstein's curved space and time.
Gathering starlight…
Press L for lessons. No microphone needed. Teacher guides