“The Hitchhiker’s Guide to the Galaxy” had the answer; we think we have the right question. This week, Ajay Kumar from IISER Pune, India, will take us on a journey to the depths of the Earth’s lithosphere – a world as mysterious as the farthest reaches of the Universe. We will see what the thickness of the Earth’s crust can tell us about the balance between the ...[Read More]
Equilibrium Crustal Thickness and Dynamics of Earth’s Lithosphere: The Answer is 42.

There really is an answer, and now there is a question too - just deep below us rather than above. But then again, aren't up and down just conventions? Figure courtesy: Emily Hinshaw.