Although satellites orbiting the Moon and Mars have gathered vast amounts of data about their surfaces, investigating what lies beneath the crust has historically presented a major challenge. To overcome this obstacle, researchers developed an innovative technique known as tidal tomography, which utilizes existing orbital technology to peer deep into planetary interiors.
In a recent study published in scientific literature, a research team successfully applied this method to the Red Planet. They uncovered a massive thermal anomaly in the mantle beneath the southern hemisphere of Mars. According to the data, this subsurface hot spot is 200 to 400 degrees Celsius warmer than adjacent regions. This discovery provides crucial insights into how Mars has thermally and structurally evolved over time.
This work builds upon earlier applications of tidal tomography that mapped Earth's interior. After adapting the framework for Martian conditions, the team successfully demonstrated its effectiveness. Researchers now anticipate that this technique will soon be deployed to study the Moon, potentially uncovering unprecedented details about its hidden subsurface structure and geological history.
Difficult words
- crust — the outermost solid layer of a rocky planet
- obstacle — something that makes it difficult to do something
- technique — a particular way of doing a specialized task
- anomaly — something that is unusual or different from normal
- mantle — the layer of rock between the crust and core
- deploy — to bring something into action or usedeployed
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Why do you think it is difficult to study the inside of planets like Mars?
- How might learning about the interior of Mars help us understand Earth better?
- What other celestial bodies could benefit from new scientific investigation techniques?
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