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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What secrets are hiding in the clouds of Venus? What is happening at Saturn's south pole? And what can an interstellar visitor tell us about a planetary system far beyond our own?

In this episode of The Curious Signal, we travel from the strange skies of our solar system to an ancient tomb in Peru that remained sealed for roughly 600 years. Along the way, we explore mysterious planetary formations, a visitor from another star, forgotten civilizations, and a fascinating scientific idea about what might be hiding on the Moon.

Some mysteries have answers. Some are still waiting for them.

Turn up the music, follow the clues, and go down the rabbit hole.

🎵 Featuring original music by Jaybird & The Puzzle Masters.

🪐 Venus's Mysterious Clouds

ScienceDaily — Venus’s pale yellow clouds may hide something surprisingly dark

https://www.sciencedaily.com/releases/2026/09/260912220022.htm

🪐 Saturn's 10-Sided Cloud Formation

Space.com — Astronomers discover mysterious 10-sided cloud structure at Saturn's south pole

https://www.space.com/astronomy/saturn/astronomers-discover-mysterious-10-sided-cloud-structure-at-saturns-south-pole

☄️ Interstellar Comet 3I/ATLAS

NASA — Webb Finds Clues to Ancient, Distant Origin of Comet 3I/ATLAS

https://science.nasa.gov/missions/webb/nasas-webb-finds-clues-to-ancient-distant-origin-of-comet-3i-atlas/

Nature — Isotopic evidence for a cold and distant origin of 3I/ATLAS

https://www.nature.com/articles/s41586-026-10771-6

🏺 The 600-Year-Old Tomb in Peru

Smithsonian Magazine — Unsealed for the First Time in 600 Years, This Tomb in Peru Was Just Declared the “Discovery of the Decade”

https://www.smithsonianmag.com/smart-news/unsealed-for-the-first-time-in-600-years-this-tomb-in-peru-was-just-declared-the-discovery-of-the-decade-180989497/

🌑 Ancient Alien Technology on the Moon?

Live Science — Microscopic fragments of ancient alien tech may litter the Moon — and scientists have a plan to find them

https://www.livescience.com/space/extraterrestrial-life/microscopic-fragments-of-ancient-alien-tech-may-litter-the-moon-and-scientists-have-a-plan-to-find-them

Note: The Moon/alien-technology story describes a scientific hypothesis. No alien technology has been discovered on the Moon.

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Want to venture down the rabbit hole?

Sources for today's stories are listed above. Some of these mysteries are still being investigated, so follow the links and see what you discover.

1. Dark Matter — LUX-ZEPLIN's mysterious signal

U.S. Department of Energy — LZ Sees Surprising Result in Search for Dark Matter

2. The 84 mysterious X-ray objects

NASA Chandra — NASA's Chandra Unveils Mysterious X-Ray Objects

3. The 5,000-year-old Polish burial and tooth necklace

Live Science — Stone Age burial with decapitated heads and a tooth necklace

4. The mysterious stone in the 2,300-year-old Qin burial

Arkeonews — Mysterious Stone Found Inside a 2,300-Year-Old Qin Burial

5. The mysterious Denisovans of southwestern China

Nature — Denisovans from southwestern China and their subsistence strategies

Nature — Ancient proteins identify various Denisovan remains from Southwest China

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