S46 E12: The Planets: Inner Worlds Preview

The rocky planets—Mercury, Venus, Earth and Mars—were born of similar material around the same time. Yet only one of them supports life. Were Earth's neighbors always so extreme? And is there somewhere else in the solar system life might flourish?
Aired: 7/24/2019 | 0:00:26
You may also like
  • Earth's Natural Wonders
  • Magical Land of Oz
  • A Year in Space
  • Second Opinion
  • On Call: Health + Medicine
©2019 WNET All Rights Reserved.   825 Eighth Avenue, New York, NY 10019