Arizona PBS Previews

NOVA : 4612

Preview | 30s

"The Planets: Inner Worlds" – 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?

Aired: 07/24/19

Rating: NR

Problems Playing Video? | Closed Captioning

Arizona PBS Previews is a local public television program presented by Arizona PBS.