Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: nudephil on 03/03/2020 11:43:20

Title: Could you regenerate Mars' magnetic field with asteroids?
Post by: nudephil on 03/03/2020 11:43:20

Greg sent us this question about terraforming Mars:

If you increase Mars's mass 38% by directing asteroids to it's surface, would it cause its core to once again generate a magnetic field to protect and further develop its atmosphere, as well as increase its gravity to the equivalent of earth? If so, would this not then be a better option than creating greenhouse gas machines on the surface which would only cover the atmosphere issue?

Is it theoretically possible?

Title: Re: Could you regenerate Mars' magnetic field with asteroids?
Post by: chris on 03/03/2020 22:34:54

Why would you want to?

But to address the question, why 38%? Is there some special significance to that number?