WORLD'S FIRST UNDERWATER HABITAT IN DECADES TO UNLOCK SECRETS OF 95% OF OCEANS

Summary from the TLDR newsletter

DEEP, a UK-based subsea engineering firm, has unveiled a prototype of an underwater habitat designed to allow scientists to live and carry out research beneath the sea's surface for days at a time. The Vanguard pilot human habitat is part of an ambitious effort to make long-term underwater living possible. The prototype can support up to four crew members for up to a week. Currently, most expeditions can only allow scientists to stay submerged for a few hours at a time.