Laplace's equipment picked up the "signals from the seabed of the wreckage search area, assumed to be from one of the data recorders," the Egyptian statement read. It added that a second ship, the John Lethbridge, affiliated with the Deep Ocean Search firm, will join the search team later this week. Locator pings emitted by flight data and cockpit voice recorders can be picked up from deep underwater. The Laplace is equipped with three detectors made by the Alseamar company designed to detect and localize signals from the flight recorders, which are believed to be at a depth of about...