Doctor Who

Season 2 Episode 8

The Impossible Planet (1)

Aired Saturday 8:00 PM Jun 03, 2006 on BBC America



  • Trivia

    • The 'Impossible Planet' is said to be in geosynchronous orbit around the black hole.

      Geosynchronous satellites orbit over the same place on the Earth's equator, orbiting at the same rate around the Earth as the Earth rotates under the satellites.

      However, as black holes are not the Earth, the term "geo" is a misnomer.

      But as almost all black holes derive from rotating stars, and thus possess angular momentum, a "synchronous" orbit would be possible, although an advanced definition of "synchronous" would be necessary, since rotating black holes twist the space-time around them (known as "Lense-Thirring-effect").