Deepest 'blue hole' discovered in abyss at 1,300 feet. It's bottom hasn't been reached yet

Blue holes are vertical marine caves formed over millennia by glacial runoff during the Ice Age. (Representational)

Scientists have unveiled what might be the deepest known blue hole on Earth, a mysterious abyss named the Taam Ja’ Blue Hole (TJBH), located in Chetumal Bay off the Yucatan Peninsula. This underwater marvel has baffled researchers with its staggering depths, extending an astonishing 1,380 feet below sea level, surpassing the previous record holder by a significant margin.

The TJBH, described in a recent study published in the journal Frontiers in Marine Science, presents an unparalleled opportunity for scientific exploration. The study's lead author highlighted the significance of this finding, stating, "The depths of the Taam Ja’ Blue Hole could harbour a biodiversity waiting to be explored."

Blue holes are vertical marine caves formed over millennia by glacial runoff during the Ice Age. These sprawling sinkholes, often hundreds of feet deep and equally wide, remain enigmatic due to their inhospitable conditions. Filled with hydrogen sulphide, these portals present significant challenges for exploration.

Initial discoveries of the TJBH in 2021 were limited by technology, with measurements only reaching 900 feet due to the echo-sounder's constraints. However, a recent expedition equipped with advanced tools like the conductivity, temperature, and depth (CTD) profiler pushed these boundaries further.

This state-of-the-art device recorded real-time water data, revealing the TJBH's astounding depths and prompting scientists to speculate about its unseen depths.

The team, unable to ascertain the TJBH's maximum depth during the latest expedition, remains optimistic about future explorations. They hope to uncover a hidden world beneath, potentially an intricate system of caves and tunnels teeming with undiscovered lifeforms.

These subterranean formations are also often likened to portals, offering glimpses into the mysteries of space and time. In the Bahamas, bacteria discovered deep within similar caves have fuelled discussions about extraterrestrial life and the possibility of survival on other planets.