The search intensifies for the missing Titanic tourist submersible, with details emerging about the passengers' backgrounds and the ongoing rescue efforts. British millionaire Hamish Harding, one of the five individuals aboard, is a founding member of the Explorers Club, a prestigious organization dedicated to scientific exploration. The club boasts prominent members like Jeff Bezos and Buzz Aldrin. Harding, also chair of the club's Middle East chapter, was reportedly enthusiastic about the expedition.

The Explorers Club president expressed hope for the crew's safe return, highlighting Harding's anticipated research at the Titanic site. Harding's adventurous spirit is well-documented, with achievements including a record-setting Earth circumnavigation and an Antarctic expedition with Buzz Aldrin. He also participated in a Blue Origin space flight.

Adding to the complexity, another Explorers Club member, Josh Gates, revealed concerns about the submersible's performance during a previous dive. The other passengers include French Titanic expert Paul-Henry Nargeolet, OceanGate CEO Stockton Rush, Pakistani billionaire Shahzada Dawood, and his son, Suleman.

Rescue teams are expanding their search area, utilizing ships and vessels equipped for deep-sea exploration. Underwater sounds detected for two consecutive days offer a potential lead, although the source remains unknown. The Coast Guard emphasizes the mission's focus on search and rescue, deploying all available resources.

Despite the challenges, including locating the submersible, reaching it with equipment, and surfacing it while ensuring the passengers' safety, hope persists. The oxygen supply onboard remains a critical factor.