The DVD packaging and menus label this episode as "Extreme Planets",
but the on-screen title is just "Planets".
Just plain "Planets" is more appropriate, because the episode mostly
covers planetary formation in a solar system by
detailing the example of the eight planets of our solar system.
It also shows how a planet can generate a magnetic field that
protects it from solar winds - arguably the most fascinating
part of the show.
Also fascinating are the discoveries made by a probe that
descended into Jupiter's atmosphere. Find out what it found out,
and what its ultimate fate was.
Most of our time is spent on Mercury, Earth, Mars, and Jupiter,
with contributions from asteroids, comets, and the moon Io.
As this program was made, the year was 2010, and
the exoplanet count had gone over 400. No specific exoplanet
or its conditions were discussed, although the "Hot Jupiter" type
is certainly mentioned.
Buried on the inside disc cover:
There are just eight planets in our solar system, but there could be a hundred billion planets in our
Milky Way galaxy alone. This show follows the journey of planets as they grow from grains of
dust to the magnificently diverse worlds we see today.