Mars could have a stable internal core inside its liquid outer core, in keeping with a brand new evaluation of the planet’s seismic exercise. This might assist clear up a number of enigmas about Martian geology – however not everyone seems to be satisfied.
“It’s huge if true,” says Simon Stähler at ETH Zurich in Switzerland, who was not concerned with the analysis. “The seismological proof for it’s somewhat skinny.”
Just a few years in the past,…