Is Mars a Liquid Core?

Dane yewell: Mars could look sort of small and cold, but it could be inside a frothing or seeding. And that's a really exciting moment in science, when you realize this other theory is actually totally consistent with everything we know. Then, i guess the big question then is, if it could be liquid inside, how could we ever know? How are we going to find out what's inside? Dane yewell: It turns out we ave lots of different ways to probe this question,. some of which we can do without actually going to the surface of mars.