Footage showing the 1986 dive that explored the RMS Titanic wreckage for the first time is scheduled to be released on Wednesday evening, February 15.The Massachusetts-based Woods Hole Oceanographic Institution (WHOI), which conducted the exploration and is now releasing the footage, said some of the 80-minute video has never been seen by the public.Around 1500 people died when the Titantic struck an iceberg and sank on its maiden voyage from England to New York City in 1912. The wreckage wasn’t discovered until September 1, 1985, when a team from WHOI and Institut français de recherche pour l’exploitation de la mer (IFEMER) found it using new imaging technology.In July 1986, nine months after the initial discovery, a team from WHOI returned to the site and searched the wreckage using a three-person research submersible named Alvin and a remotely operated vehicle dubbed Jason Jr. The trip marked the first time that people laid eyes on the vessel since it sank, WHOI said in a press release.This footage, captured by cameras on HOV Alvin and ROV Jason Jr, was filmed on dives from July 13 to 24, 1986, WHOI said.The release coincides with the 25th anniversary of the blockbuster movie Titanic. Credit: WHOI Archives /©Woods Hole Oceanographic Institution via Storyful