Audio is streamed directly from the publisher (traffic.megaphone.fm) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
Discover Valles Marineris — the deepest and longest canyon in the entire solar system. Stretching across nearly a quarter of Mars, this colossal rift reveals clues about the planet’s violent geological history and the possibility that water once flowed through its ancient valleys.
Learn more about your ad choices. Visit megaphone.fm/adchoices