A documentary chronicling the history of the telescope from the time of Galileo. Featuring interviews with leading scientists discussing Galileo's first use of the telescope to the latest discoveries in cosmology.
| Actor | Role |
|---|---|
 Neil deGrasse TysonNarrator (voice) | Narrator (voice) |
 Lawrence KraussHimself | Himself |
| WWendy FreedmanHerself | Herself |
| MMark GiampapaHimself | Himself |