For the first time, astronomers have directly mapped the rotation of a protoplanetary disk by tracking emissions from dust grains within it. The disk orbits AB Aurigae, a young star where planets are actively taking shape.
While the disk largely spins in line with theoretical predictions, certain regions close to the star deviate unexpectedly from this behavior. This anomaly suggests gravitational disturbances from massive objects embedded in the disk.
A growing body of evidence indicates that unseen giant planets are responsible for the unusual rotational patterns. The finding offers the clearest direct view yet of planetary formation in action.
The discovery opens a new window into how planetary systems like our own emerge. Future observations could pinpoint the exact locations and masses of these infant planets, refining models of disk evolution.
Researchers caution that confirmation requires further spectral analysis. Still, the direct detection method marks a significant leap from indirect inference.