First-Ever Radio Signal Detected from an Exoplanet
- Astronomy researchers have detected direct radio signals originating from the exoplanet Beta Pictoris b, located 63 light-years away from Earth.
- The detected signals consist of repeating radio flashes generated by auroral processes in the gas giant's powerful magnetic field.
- The exoplanet Beta Pictoris b is a gas giant with a mass roughly twelve times that of Jupiter, orbiting a young star that is 1.75 times as heavy...
Astronomy researchers have detected direct radio signals originating from the exoplanet Beta Pictoris b, located 63 light-years away from Earth. As reported by telegraaf.nl on October 4, 2026, the discovery marks the first time scientists have captured radio emissions directly from a planet outside our solar system, though experts emphasize the finding does not indicate intelligent extraterrestrial life.
The detected signals consist of repeating radio flashes generated by auroral processes in the gas giant’s powerful magnetic field. According to research published in the scientific journal ArXiv, the planet possesses a massive magnetic field capable of producing aurora-radio-emissions similar to the northern lights observed on Earth, Jupiter, and Saturn.
Detecting Radio Emissions from Beta Pictoris b
The exoplanet Beta Pictoris b is a gas giant with a mass roughly twelve times that of Jupiter, orbiting a young star that is 1.75 times as heavy as our sun. noted that the system is situated in the southern constellation Pictor and is estimated to be only 23 million years old, with the planet completing an orbit around its host star every 24 years.
A research team led by Kevin Ortiz Ceballos utilized the MeerKAT radio array in South Africa to capture the signals between February 2025 and May 2026. detailed that the team recorded fast, repeating, and strongly circularly polarized bursts operating at frequencies between 0.85 and 3.5 gigahertz, varying on time scales of seconds.
Evaluating the Planetary Magnetic Field
The observed radio waves point to aurora-elektronen-cyclotron-maser radiation originating within the magnetosphere of the exoplanet. Edo Berger, a Harvard astronomy professor and co-author of the study, explained the significance of the data regarding planetary magnetism.
„Ik weet dat radiosignalen in verband worden gebracht met de zoektocht naar buitenaardse intelligentie”, zegt Edo Berger, hoogleraar astronomie aan de universiteit van Harvard en co-auteur van de studie die onlangs in het wetenschappelijke tijdschrift ArXiv werd gepubliceerd. „Maar dit is iets heel anders. Het bewijs van een enorm magnetisch veld, niet van intelligent leven.”
Edo Berger, Harvard University
Based on the highest observed frequency, the research team calculated a local magnetic field strength of at least 1.25 kilogauss at the radiation source. reported that this figure represents a magnetic field several thousand times stronger than Earth’s own field and provides the first direct measurement of magnetism on an exoplanet.
Implications for Exoplanet Atmospheres
While telegraaf.nl highlighted that the discovery rules out intelligent signals, researchers point out that mapping planetary magnetic fields opens new avenues for studying distant worlds. Berger noted that magnetic fields directly influence the structural integrity and atmospheric behavior of exoplanets.
Radiowaarnemingen kunnen ons een compleet nieuw beeld geven van planeten buiten ons zonnestelsel.
Edo Berger, Harvard University