allseeing.space
Classroom edition. Narrated journeys through real space, with captions and teacher guides.
Narrated journey
Students learn how galaxies gather into groups, clusters, superclusters and the cosmic web, how hot gas between galaxies glows in X-rays, and how the motions of galaxies in clusters gave the first clues to dark matter.
Gathering starlight…
Press L for lessons. No microphone needed. Teacher guides