Former major leaguer Jose Canseco followed a string of out-of-left-field Mars terraforming tweets by posting this photo he took with his dog. Credit: @JoseCanseco

“By my calculations if we nuked the polar ice caps on Mars we would make an ocean of 36 feet deep across the whole planet.”

— former baseball player Jose Canseco, in a tweet Thursday discussing, for reasons unclear, the terraforming of Mars.

Canseco later suggested terraforming Mars could be accelerated by “redirecting Saturn’s moon Triton [sic] to collide into Mars,” which he said would create a magnetic field when it “liquidates Mars outer core into molten iron.”

If we could get ammonia to Mars we could make an atmosphere

— Jose Canseco (@JoseCanseco) December 11, 2015

By my calculations if we nuked the polar ice caps on Mars we would make an ocean of 36 feet deep across the whole planet. — Jose Canseco (@JoseCanseco) December 11, 2015

And then it appears that redirecting Saturn’s moon Triton to collide into Mars could make the planet habitable faster

— Jose Canseco (@JoseCanseco) December 11, 2015

Yes i DID think about the missing magnetic field. It is created when the Triton collision liquidates Mars outer core into molten iron. — Jose Canseco (@JoseCanseco) December 11, 2015


Canseco’s comments come three months after Elon Musk, appearing on “The Late Show with Stephen Colbert,” suggested dropping thermonuclear weapons over the poles of Mars to quickly terraform the planet.


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Jeff Foust writes about space policy, commercial space, and related topics for SpaceNews. He earned a Ph.D. in planetary sciences from the Massachusetts Institute of Technology and a bachelor’s degree with honors in geophysics and planetary science...