Uploaded May 2026 | Updated September 2026, 2 weeks ago
Something extraordinary happened on the Sun in 2025.
For 19 straight days, the Sun produced the longest-lasting Type IV radio burst ever recorded — a continuous radio emission powered by high-energy electrons trapped inside a giant magnetic structure called a helmet streamer.
But the timing raised eyebrows.
As interstellar object 3I/ATLAS moved deeper into our solar system, four spacecraft spread across more than 220 degrees around the Sun tracked a radio event that refused to fade. What should have lasted hours kept getting "refueled" by repeated solar eruptions from the same active region.
👉 Subscribe for more space science: youtube.com/@RaysAstrophotography?sub_confirmation=1
In this video, we follow the full timeline:
☀️ The discovery of 3I/ATLAS
☀️ The Sun's unprecedented 19-day broadcast
☀️ The three CMEs that kept the signal alive
☀️ The giant helmet streamer acting like a natural radio transmitter
☀️ The spacecraft that recorded the event across the inner solar system
☀️ And the strange timing overlap nobody expected
Using real spacecraft imagery, coronagraph data, radio burst observations, solar physics, and timeline reconstructions, we break down one of the strangest solar events ever observed.
This is not science fiction. This really happened.
⏱️ CHAPTERS
0:00 The 19-Day Broadcast
0:22 3I/ATLAS Enters the Solar System
0:40 Radio Signals on the AM Band
1:01 A Signal From Proxima Centauri
2:29 Who Is Cosmic Ray
3:05 The Full Timeline
4:48 The Helmet Streamer Revealed
5:01 How the Magnetic Spike Forms
6:24 Why the Sun Broadcast for 19 Days
6:34 The Shape That Caught My Eye
8:01 The Real Eclipse Photo
10:21 A Natural Radio Transmitter
11:21 Four Spacecraft, One Sun
11:48 Three CMEs Kept It Alive
12:18 Proxima Centauri: A Signal From Another Star
13:40 The Paper That Started It
14:31 The Recorded Frequencies
15:10 My Own 3I/ATLAS Captures
17:34 Is Anybody Listening?
18:34 Closing Thoughts
📚 SOURCES & ATTRIBUTION
Primary paper:
Krupar, V. et al. (2026). "Unprecedented 19 Day Type IV Radio Burst as a Corotating Electron Reservoir." The Astrophysical Journal Letters, 1003, L5. DOI: 10.3847/2041-8213/ae5537
Proxima Centauri Type IV burst:
Zic, A. et al. (2020). "A Flare-Type IV Burst Event from Proxima Centauri and Implications for Space Weather." The Astrophysical Journal, 905, 23. DOI: 10.3847/1538-4357/abca90
Proxima Centauri record flare:
MacGregor, M. et al. (2021). "Discovery of an Extremely Short Duration Flare from Proxima Centauri Using Millimeter through Far-ultraviolet Observations." The Astrophysical Journal Letters, 911, L25.
Spacecraft data courtesy of:
NASA Solar Orbiter (joint NASA/ESA), NASA Parker Solar Probe, NASA STEREO, NASA Wind, ESA/NASA Hubble Space Telescope, NASA TESS, Vera C. Rubin Observatory, Gemini South Observatory.
Solar eclipse helmet streamer photograph:
Miloslav Druckmüller, Peter Aniol, Shadia Habbal / NASA Goddard / Joy Ng — total solar eclipse, August 21, 2017.
NASA Science blog announcement: May 14, 2026.
All science imagery used under NASA/ESA public-use guidelines or with credit per NASA Goddard distribution.
Sources include: NASA, ESA, Solar Orbiter, Parker Solar Probe, STEREO-A, Wind, Hubble, TESS, Vera Rubin Observatory, Gemini South, and published solar radio burst research.
#3IATLAS #SolarStorm #Sun #SpaceWeather #InterstellarObject #NASA #SolarOrbiter #ParkerSolarProbe #STEREOA #HelmetStreamer #TypeIVBurst #Astronomy #Space #CosmicRay #SolarPhysics
Something extraordinary happened on the Sun in 2025.
For 19 straight days, the Sun produced the longest-lasting Type IV radio burst ever recorded — a continuous radio emission powered by high-energy electrons trapped inside a giant magnetic structure called a helmet streamer.
But the timing raised eyebrows.
As interstellar object 3I/ATLAS moved deeper into our solar system, four spacecraft spread across more than 220 degrees around the Sun tracked a radio event that refused to fade. What should have lasted hours kept getting "refueled" by repeated solar eruptions from the same active region.
👉 Subscribe for more space science: youtube.com/@RaysAstrophotography?sub_confirmation=1
In this video, we follow the full timeline:
☀️ The discovery of 3I/ATLAS
☀️ The Sun's unprecedented 19-day broadcast
☀️ The three CMEs that kept the signal alive
☀️ The giant helmet streamer acting like a natural radio transmitter
☀️ The spacecraft that recorded the event across the inner solar system
☀️ And the strange timing overlap nobody expected
Using real spacecraft imagery, coronagraph data, radio burst observations, solar physics, and timeline reconstructions, we break down one of the strangest solar events ever observed.
This is not science fiction. This really happened.
⏱️ CHAPTERS
0:00 The 19-Day Broadcast
0:22 3I/ATLAS Enters the Solar System
0:40 Radio Signals on the AM Band
1:01 A Signal From Proxima Centauri
2:29 Who Is Cosmic Ray
3:05 The Full Timeline
4:48 The Helmet Streamer Revealed
5:01 How the Magnetic Spike Forms
6:24 Why the Sun Broadcast for 19 Days
6:34 The Shape That Caught My Eye
8:01 The Real Eclipse Photo
10:21 A Natural Radio Transmitter
11:21 Four Spacecraft, One Sun
11:48 Three CMEs Kept It Alive
12:18 Proxima Centauri: A Signal From Another Star
13:40 The Paper That Started It
14:31 The Recorded Frequencies
15:10 My Own 3I/ATLAS Captures
17:34 Is Anybody Listening?
18:34 Closing Thoughts
📚 SOURCES & ATTRIBUTION
Primary paper:
Krupar, V. et al. (2026). "Unprecedented 19 Day Type IV Radio Burst as a Corotating Electron Reservoir." The Astrophysical Journal Letters, 1003, L5. DOI: 10.3847/2041-8213/ae5537
Proxima Centauri Type IV burst:
Zic, A. et al. (2020). "A Flare-Type IV Burst Event from Proxima Centauri and Implications for Space Weather." The Astrophysical Journal, 905, 23. DOI: 10.3847/1538-4357/abca90
Proxima Centauri record flare:
MacGregor, M. et al. (2021). "Discovery of an Extremely Short Duration Flare from Proxima Centauri Using Millimeter through Far-ultraviolet Observations." The Astrophysical Journal Letters, 911, L25.
Spacecraft data courtesy of:
NASA Solar Orbiter (joint NASA/ESA), NASA Parker Solar Probe, NASA STEREO, NASA Wind, ESA/NASA Hubble Space Telescope, NASA TESS, Vera C. Rubin Observatory, Gemini South Observatory.
Solar eclipse helmet streamer photograph:
Miloslav Druckmüller, Peter Aniol, Shadia Habbal / NASA Goddard / Joy Ng — total solar eclipse, August 21, 2017.
NASA Science blog announcement: May 14, 2026.
All science imagery used under NASA/ESA public-use guidelines or with credit per NASA Goddard distribution.
Sources include: NASA, ESA, Solar Orbiter, Parker Solar Probe, STEREO-A, Wind, Hubble, TESS, Vera Rubin Observatory, Gemini South, and published solar radio burst research.
#3IATLAS #SolarStorm #Sun #SpaceWeather #InterstellarObject #NASA #SolarOrbiter #ParkerSolarProbe #STEREOA #HelmetStreamer #TypeIVBurst #Astronomy #Space #CosmicRay #SolarPhysics
