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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.
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.