The wireline drilling core barrel is visible from the underside of the Liftboat Robert platform, from the Gaspee, a crew transport vessel, in the North Atlantic, Saturday, July 19, 2025. (AP Photo/Carolyn Kaster)
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The sun sets behind the Liftboat Robert platform, home of Expedition 501, in the North Atlantic, Saturday, July 19, 2025. (AP Photo/Carolyn Kaster)
Expedition 501 researchers, including Brandon Dugan, Expedition 501 co-chief scientist, carry cores to a cold storage container aboard the Liftboat Robert platform, in the North Atlantic, Sunday, July 20, 2025. (AP Photo/Carolyn Kaster)
Residual water gushes from the Expedition 501 wireline core drilling rig during an operation aboard the Liftboat Robert platform, in the North Atlantic, Sunday, July 20, 2025. (AP Photo/Carolyn Kaster)
Expedition 501 members look down from the Liftboat Robert platform, to the approaching Gaspee, a crew transport vessel, in the North Atlantic, Saturday, July 19, 2025. (AP Photo/Carolyn Kaster)
A supply container is lifted from the Gaspee, a crew transport vessel, to the Liftboat Robert platform during an Expedition 501 crew and supply transfer in the North Atlantic, Saturday, July 19, 2025. (AP Photo/Carolyn Kaster)
Expedition 501 members in a Billy Pugh basket are lowered from the Liftboat Robert platform to the Gaspee, a crew transport vessel, in the North Atlantic, Saturday, July 19, 2025. (AP Photo/Carolyn Kaster)
Expedition 501 researcher Alizé Longeau collects water samples from cores aboard the Liftboat Robert platform, in the North Atlantic, in the early morning hours, Sunday, July 20, 2025. (AP Photo/Carolyn Kaster)
Expedition 501 drilling team members, from left, Nick Boehne, Chris Redding and Lalo Aguilar work to remove a core sample from an inner tube during a wireline core drilling operation aboard the Liftboat Robert platform, in the North Atlantic, Sunday, July 20, 2025. (AP Photo/Carolyn Kaster)
Drilling team member Lalo Aguilar works on inner tubes during an Expedition 501 wireline core drilling operation aboard the Liftboat Robert platform, in the North Atlantic, Sunday, July 20, 2025. (AP Photo/Carolyn Kaster)