A NASA employee testified during a weekslong hearing on the implosion of OceanGate's Titan submersible that the agency had disagreements over the sub maker's press materials mentioning NASA. Justin Jackson,

Representatives for NASA, Boeing Co. and the U.S. Coast Guard are slated to testify in front of investigators Thursday about the experimental submersible that imploded en route to the wreckage of the

OceanGate charged six-figure prices to dive to Titanic ruins. Passengers had the title “mission specialist,” but the work was menial, a fellow sub operator said.