The Most Energetic Neutrino Ever Detected

Bedtime Astronomy

In February 2023, the deep-sea observatory KM3NeT detected a record-breaking neutrino with an energy of 220 million billion electron volts.

Known as KM3-230213A, this “ghost particle” may be a rare cosmogenic neutrino—formed when ultra-high-energy cosmic rays collide with radiation from the Big Bang. Its path points to a handful of possible cosmic origins, but its true source remains unknown. If confirmed, detections like this could open a direct window into the early universe—and potentially expose physics beyond current models.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.
More description
In February 2023, the deep-sea observatory KM3NeT detected a record-breaking neutrino with an energy of 220 million billion electron volts.

Known as KM3-230213A, this “ghost particle” may be a rare cosmogenic neutrino—formed when ultra-high-energy cosmic rays collide with radiation from the Big Bang. Its path points to a handful of possible cosmic origins, but its true source remains unknown. If confirmed, detections like this could open a direct window into the early universe—and potentially expose physics beyond current models.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.
2026-05-13 39 min Transcript
Listen elsewhere

Available Results

Generated results are saved to your library for reuse and search.

No generated results are available for this episode yet.

Transcript

Open the Transcript tab to load the transcript.

Chapters

No chapters available.