Today, you’ll learn about a record-breaking deep drill into the Earth’s mantle, the new science behind the ancient Chinese diagnostic practice of tongue examination, and how a new discovery at Stonehenge is opening up yet more mysteries.  

Mantle Drill 

• “Geologists drill 1.2 km into rare rocks from Earth’s mantle.” by Michael Irving. 2024.  
• “Internal Structure of Earth: Crust, Mantle & Core, Discontinuities.” Rau’s IAS. 2024. 
• “Earth’s layers: Exploring our planet inside and out.” by Daisy Dobrijevic. 2023.  
• “A long section of serpentinized depleted mantle peridotite.” by C. Johan Lissenberg, et al.  

Tongue Exam 

• “Say ‘aah’ and get a diagnosis on the spot: is this the future of health?” University of South Australia. 2024.  
• “Tongue Disease Prediction Based on Machine Learning Algorithms.” by Ali Raad Hassoon, et al. 2024.  

Stonehenge Discovery 

• “Stonehenge’s Strangest Rock Came From 500 Miles Away.” by Meghan Bartels. 2024.  
• “A Scottish provenance for the Altar Stone of Stonehenge.” by Anthony J. I. Clarke, et al. 2024.  

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