Rights: Photo by Kristina Pascher, IODP expedition 371. International Ocean Discovery Program (IODP) and JOIDES Resolution Science Operator (JRSO) Published 20 December 2017 Size: 99 KB

Specialist drilling crew watch the controls carefully as JOIDES Resolution lowers a drill string below the seafloor. The core samples collected show scientists the different layers and rock types – each layer records a different time period.