From Science Magazine.

Seismic waves from earthquakes and nuclear bombs offer insights into the properties and history of our planet’s innards.

Read more: https://scim.ag/4oBrATp

CREDITS: (FOOTAGE) NATIONAL ARCHIVES, POND5, SCIENCE PHOTO LIBRARY/SCIENCE SOURCE, SANDIA NATIONAL LABORATORY; (PHOTO) EVAN NEUHAUS/NATIONAL LIBRARY OF DENMARK; (VIDEO) STEPHANIE CASTILLO; (SCRIPT) M. CANTWELL/SCIENCE; (ILLUSTRATION) C. BICKEL/SCIENCE

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