A new method to scan the deep interior of planets in our solar system to confirm whether they have a core at the heart of their existence has been developed by seismologists from the Australian National University (ANU). Functioning in a similar way to an ultrasound scan using sound waves to ge
An illustration of the Martian interior. Credit: Dr Sheng Wang and Professor Hrvoje Tkalcic/ANU
“Our research presents an innovative method using a single instrument to scan the interior of any planet in a way that’s never been done before,” he said. “Modelling suggests that the Martian core is liquid and while it is made up of mostly iron and nickel, it could also contain traces of lighter elements such as hydrogen and sulfur. These elements can alter the ability of the core to transport heat,” lead author Dr. Sheng Wang, who is also from ANU, said.
“Although these late signals appear to be noisy and not useful, the similarity between these weak signals recorded at various locations on Mars manifests itself as a new signal that reveals the presence of a large core in the Red Planet’s heart,” Professor Tkalcic said.
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