Random synapses firing reading across posted questions here on SEx.SE ...
- Martian gravity is weaker than Terran
- Martian magnetic field almost non-existent
- Martian atmosphere is far thinner than Terran
- Traces of water/moisture were reportedly discovered on Mars
Facts as I understand
- A magnetic field helps retard the impact of Sunspots/CME, and contain the atmosphere of a planet/body.
- Above is assisted by the planet's gravity
From the above, and knowing what we do about Mars at present ...
- How would the nature of the Martian atmosphere, in it's heyday, differ from Earth by virtue (or vice!) of the weaker planetary gravity?
- Could the Martian atmosphere, in it's heyday, have caused liquid water in oceanic/sub-oceanic volumes?