What secrets lie hidden in the depths of the Mariana Trench? As the deepest point on Earth, plunging nearly 36,000 feet below the surface, this mysterious abyss remains largely unexplored. Scientists have discovered strange bioluminescent creatures, unknown microbial life thriving in extreme conditions, and even puzzling sounds like the "bloop" that defy explanation. Could there be ancient, undiscovered species lurking in the darkness?