Exploring the process of analyzing seismic data from Mars to determine the nature and composition of its core, including recent data from a meteoroid impact that challenged previous assumptions.
For years, researchers have been listening to Mars and the quakes that ripple through it, to understand the planet's internal structure and uncover its history. But often these results have left more questions than answers. Now, though, new research published in Nature reveals the composition and size of Mars's core, finding that it is much smaller than previously thought.