12 Unsolved Mysteries That Scientists Still Can't Explain | Science Documentary

What happens when science encounters something it cannot explain? A glowing sphere drifts through an airplane. Navy pilots report a mysterious Tic Tac-shaped object. A visitor from another star accelerates unexpectedly. And a radio telescope receives a signal that never repeats.

Explore 12 fascinating unsolved mysteries that have puzzled scientists for decades — from ball lightning and red sprites to UFO/UAP investigations, 'Oumuamua, interstellar comet 3I/ATLAS, the search for Planet Nine, and the legendary Wow! signal.

This science documentary separates eyewitness accounts from measured evidence, examines competing explanations, and reveals why some discoveries remain open questions. No claims of proven alien visitors — just real research, remarkable observations, and the thrill of the unknown.

🔬 Which mystery deserves the next breakthrough?
🔔 Follow Mystery for more science, space and unexplained phenomena.
💬 Tell us which case surprised you most!

SOURCES & FURTHER READING

1. APS — Ball Lightning Spectrum
   https://doi.org/10.1103/PhysRevLett.112.035001

2. ESA — Lightning and Sprites
   https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/The_chemistry_of_lightning

3. ESA — Blue Jets from Space
   https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Genesis_of_blue_lightning_into_the_stratosphere_detected_from_the_International_Space_Station/

4. NASA — UAP Study
   https://science.nasa.gov/uap/

5. NASA — UAP Report (PDF)
   https://science.nasa.gov/wp-content/uploads/2023/09/uap-independent-study-team-final-report.pdf

6. AARO — Historical UAP Report
   https://www.aaro.mil/Portals/136/PDFs/AARO_Historical_Record_Report_Vol_1_2024.pdf

7. AARO — UAP Annual Reports
   https://www.aaro.mil/Next-AARO-Home-redesign/Next-Parent/Next-AARO-Congressional-Press-Products/

8. NASA — 'Oumuamua
   https://science.nasa.gov/solar-system/comets/oumuamua/

9. NASA — 'Oumuamua Questions
   https://science.nasa.gov/solar-system/what-we-knowand-dont-knowabout-oumuamua/

10. NASA — 3I/ATLAS Facts
    https://science.nasa.gov/solar-system/comets/3i-atlas/3i-atlas-facts-and-faqs/

11. NASA — Planet Nine
    https://science.nasa.gov/solar-system/planet-x/

12. NASA — Planet Nine Research
    https://science.nasa.gov/universe/exoplanets/planet-nine/

13. SETI Institute — Wow! Signal
    https://www.seti.org/research/seti-101/the-wow-signal

14. Berkeley SETI — Wow! Search
    https://seti.berkeley.edu/wow/

15. Berkeley SETI — BLC1 Signal
    https://seti.berkeley.edu/blc1/overview.html

16. ESA — Storm Phenomena
    https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Secret_life_above_thunderstorms_uncovered

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