× ELECTION Coverage of Arizona's election with all-day analysis and live results beginning at 8pm.Election CoverageElection Results
  1. TV Schedules
  2. Episode of Nova

Nova

The Planets: Inner Worlds

Season 46, Episode 12 of 23

The rocky planets - Mercury, Venus, Earth and Mars - were born of similar material around the same time, yet only one supports life. Were Earth's neighbors always so extreme? Is there somewhere else in the solar system where life might flourish?

More From this Series

Previously Aired

Day
Time
Channel
3/23/2020
3 p.m.
PBS 6
4/27/2020
8 a.m.
PBS 6 Plus
4/27/2020
noon
PBS 6 Plus
6/23/2021
1 p.m.
PBS 6 Plus
7/21/2024
1:30 p.m.
PBS 6
10/9/2024
11 p.m.
PBS 6
10/13/2024
noon
PBS 6
AZPM is a service of the University of Arizona and our broadcast stations are licensed to the Arizona Board of Regents who hold the trademarks for Arizona Public Media and AZPM. We respectfully acknowledge the University of Arizona is on the land and territories of Indigenous peoples.
The University of Arizona