Trending searches · 2026-10-03
Beta Pictoris b Radio Emission: First Radio Signal Traced to an Exoplanet
This post was compiled with AI. We checked it against the original articles and announcements, but please confirm details in the linked sources. Trending on Google Trends (AU) 500+; sources collected 2026-10-03 14:10 (KST).
In one line
Astronomers report the first radio emission traced directly to a planet outside the solar system: Beta Pictoris b, a gas giant about 63 light-years from Earth. The signal points to a strong magnetic field and auroras, not to alien life, and CNN reports that the paper has not yet been peer reviewed.
Why people are searching
"beta pictoris b" appeared on Google Trends' daily trending list for Australia with 500+ searches (checked at 2:10 p.m. KST on Oct. 3). The news items attached to it were reports from CNN, The New York Times and BBC Sky at Night Magazine. CNN's Oct. 2 story looks like the most likely reason for the latest rise in searches.
Key facts
| Item | Details |
|---|---|
| Planet | Beta Pictoris b, a gas giant |
| Distance | About 63 light-years |
| Telescope | MeerKAT array, South Africa |
| Paper | arXiv 2609.16720, posted Sept. 15, 2026 |
| Status | Not yet peer reviewed, according to CNN |
What was detected
The team used MeerKAT, an array of radio dishes in South Africa, and picked up recurring radio bursts from the planet.
The researchers identify the signal as auroral radio emission, the same kind of process seen at Jupiter and Saturn. Charged particles spiral along magnetic field lines and give off radio waves. Because the emission depends on the magnetic field, the detection lets the team estimate how strong the planet's field is. All three sources describe it as very strong.
Why it counts as a first
Earlier hints of radio emission from exoplanets could not rule out the host star as the source. This time the emission was localized to the planet itself, separate from the star. Sky at Night adds that the star is magnetically quiet, which helped isolate the signal.
Both CNN and Sky at Night stress that this is not a sign of alien life. The paper's authors include Kevin Ortiz Ceballos and Edo Berger.
What happens next
CNN reports that the paper is still under peer review, that outside scientists urged caution until it is complete, and that the authors have asked for more telescope time to study why the field is so strong. Sky at Night says more powerful radio observatories could apply the same approach to other gas giants.
What we could not confirm
- Planet mass: CNN says about 12 times the mass of Jupiter; Sky at Night says 10 to 12 times. No single figure is used here.
- Field strength and frequencies: Each source gives a different figure. The paper's abstract says 1.25 kilogauss or more, from emission at 0.85 to 3.5 GHz. CNN quotes Berger saying at least 200 times Jupiter's field. Sky at Night says thousands of times Earth's. No two sources state the same number, so none is in the table.
- Peer-review timing: Only CNN describes the review status. The arXiv entry is marked as submitted.
- The New York Times report: We could not open it, so nothing here relies on it.
Sources
- CNN, Astronomers pick up first-ever radio signal from an exoplanet, but it is not aliens https://www.cnn.com/2026/10/02/science/radio-signal-detection-exoplanet-beta-pictoris-b
- BBC Sky at Night Magazine, Radio signals detected from a planet beyond our Solar System https://www.skyatnightmagazine.com/news/radio-signals-detected-beta-pictoris-b
- arXiv 2609.16720, Discovery of radio emission from the exoplanet Beta Pictoris b https://arxiv.org/abs/2609.16720