Out of the Silent Planet

Episode 12 - Checking the Temperature of Ancient Mars


Listen Later

On the surface of Mars we see geologic evidence of past liquid water activity. However, climate models of its past mostly point to a cold and icy Mars, in part because our sun used to be dimmer. So was ancient Mars warm and wet or cold and dry? On today's episode, we discuss why it was probably a bit of both, after a quick laugh about a recent effort to simulate an international response (or lack thereof) to an incoming asteroid.

  • 00:00:32 - Welcome & the world isn't ready to stop asteroids,
  • 00:07:33 - Rainfall on a warm & wet early Mars (Craddock & Howard, 2002), 
  • 01:15:54 - Updated constraints on early Mars climate (Kite, 2019),
  • 02:02:18 - New model of a mostly cold early Mars (Wordsworth et al., 2021) and summary (Mangold, 2021).
  • ...more
    View all episodesView all episodes
    Download on the App Store

    Out of the Silent PlanetBy Tony Maue, Michael Phillips