Carl Sagan's Birthday Today: Christmas Lectures 1 - The Earth as a Planet

In his first Christmas Lecture, American astronomer and cosmologist Carl Sagan explores planet Earth and the place, scale and geometry of the "pale blue dot" in the Solar System. Become a member of Space News Pod! https://www.youtube.com/channel/UCX3HDBasMU2qS3svgtuzD2g/join https://anchor.fm/space-news https://patreon.com/spacenewspodcast https://youtube.com/spacenewspod https://twitch.tv/astrowil https://spacenewspodcast.com https://twitter.com/spacenewspod https://facebook.com/spacen