Explorers studying the seabed in the Atlantic Ocean came across a series of strange holes on Saturday. The National Oceanic and Atmospheric Administration shared images of the holes that baffled scientists in a Monday post on Facebook. “On Saturday’s #Okeanos dive, we observed several of these sublinear sets of holes in the sediment,” the NOAA wrote. “These holes have been previously reported from the region, but their origin remains a mystery. “While they look almost human made, the little piles of sediment around the holes make them seem like they were excavated by…something.” “What’s YOUR hypothesis?” the NOAA then asked social media users. “Molusk of some sort under the sand blows out a vent then slowly moves along blowing another vent when it rests,” one user hypothesized. “Previous dive ROV tracks?” one user wrote, to which another replied: “No, they aren’t very long, there’s no equipment (exploration or fishing) that would only be on the bottom for 20′. They were scattered all over and they were not aligned in anyway.” “Looks like impact craters around the holes, something landed and then created the hole? another user wrote. “Something that bounces across the bottom, they seem almost the same distance apart from each other.” Yet another commenter said, “I wonder if some company may be conducting sea floor samples. That might explain the straight lines and the spacing of the holes. Especially if you have seen others in the region.” The Saturday pictures were taken during the second NOAA journey in the Voyage to the Ridge 2022 series. The three-part series — which started on May 11 and will end Sept. 2 — will involve telepresence-enabled expeditions “to collect critical baseline information and improve knowledge about unexplored and poorly understood deepwater areas of the Charlie-Gibbs Fracture Zone, Mid-Atlantic Ridge, and Azores Plateau,” the NOAA said. The NOAA ship Okeanos Explorer will take part in the voyages, the last of which is scheduled for Aug. 6 to Sept. 2. The ship’s first voyage in the series was from Newport, Rhode Island, to St. John’s, Newfoundland, between May 14 and June 7. Its second voltage is from Norfolk, Virginia, to Horta, Faial, Azores, Portugal, between July 9 and July 30. As part of its third voyage, the vessel will sail from that location in Portugal to San Juan, Puerto Rico. “Voyage to the Ridge 2022 will yield data to help scientists understand the diversity and extent of deep-sea coral and sponge communities along the Mid-Atlantic Ridge, Azores Plateau, and Charlie-Gibbs Fracture Zone,” the NOAA said. “We will investigate biogeographic patterns of deep-sea ecosystems and connectivity across the Mid-Atlantic Ridge, Azores Plateau, and Charlie-Gibbs Fracture Zone for use in broader comparisons of deepwater habitats throughout the Atlantic Basin.” The voyage also will help researchers “improve knowledge of past and potential future geohazards,” the agency said. This article appeared originally on The Western Journal.