Mars Core Squishy, Goes with the Tidal Flow

A new study concludes that the core of Mars is the consistency of the syrupy goop found inside chocolate-covered fruit candy. The inference was made simply by noting minor changes in the position of a Mars-orbiting spacecraft, caused by tides. Yes, tides on Mars. While one commonly thinks of tides having to do with oceans on Earth, and being generated only by the Moon, the inner parts of heavenly bodies endure tides, too. On Earth, gravity from both the Moon and the Sun fuel ocean tides and simultaneously stretch and pull the entire planet by less noticeable amounts. Mars, too, is tidally tweaked by the Sun.