The Moon gets a new scar. A 160-year-old Arctic mystery is finally solved. And beneath the Amazon rainforest, an ancient civilization emerges from the shadows.

In Episode 3 of The Curious Signal, we explore five strange and remarkable stories from the fringe of the known—from a newly discovered lunar crater and a forgotten sailor identified through DNA, to ancient structures hidden beneath the Amazon. Then, we turn to two extraordinary stories of survival, including a man who spent nine days trapped in a flooded tunnel.

Finally, we cross into something even more mysterious: a reported near-death experience and the question of what, if anything, lies beyond the boundary between life and death.

Some mysteries have answers. Others leave us with even more questions.

🎵 Featuring original music by Jaybird & The Puzzle Masters.

Want to go down the rabbit hole? Check out the sources below and explore the stories for yourself.

🌑 The Moon's New Crater

NASA — New Moon Crater Discovered by Lunar Reconnaissance Orbiter

🧬 The Arctic Mystery

ScienceDaily — DNA Helps Identify Members of the Franklin Expedition

🏺 The Civilization Beneath the Amazon

Smithsonian Magazine — Ancient Structures Reveal a Vast Amazonian Civilization

🕳️ Nine Days in the Darkness

Reuters — Trapped for Nine Days in a Dark Tunnel

✨ The Near-Death Experience

USA Today — Near-Death Experiences and What People Report Experiencing

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