Keeping with my planetary theme of late, here’s a recent news story on how Mercury likely has a molten core. Clearly, scientists are still learning much about how planets, even those in our own solar system, form and develop.
Evelyn is a geologist, writer, traveler, and skeptic residing in Cape Town, South Africa with frequent trips back to the US for work. She has two adorable cats; enjoys hiking, rock climbing, and kayaking; and has a very large rock collection. You can follow her on twitter @GeoEvelyn. She also writes a geology blog called Georneys.