17 ag. 2025 – 15:15 hrs.
Researchers from the University of Ibaraki and the University of Tokyo (both from Japan) completed the unexpected Discovery of an “expanding bubble” around the protoplanetary disc of the star WSB 52.
While these discs, composed of gas, dust and ice bands that They fulfill the function of being “seedbeds” of planetsThey are common in young stars systems, their training processes are not entirely clear.
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What did you discover on the protoplanetary album?
Through the data of data from the Atacama Large Millimeter/submillimeter Array (Soul) About WSB 52, scientists found a mysterious “Explosive expanding bubble structure” near the protoplanetary disc.
📡 Dis ”a protoplanetary disk trapped in an explosion.
M. Aizawa and his team discovered a uniform expanding bubble structure that wraps and distorts the protoplanetary disc around the young WSB 52✨ star pic.twitter.com/Dxyn0XO16o– Alma📡 Observatory (@almaobs_esp) August 5, 2025
This would be “Trapped” in the explosionaccording to the Alma Observatory. In addition, it shows signs of collision with the bubble, which distorted it and generated a fragment of ejected gas.
Based on the information collected, the team concluded that the expansion bubble was formed by a “High speed jet” issued from WSB 52 hundreds of years agowhich was compressed by cold material and subsequently resulted in the explosion due to the increase in pressure.
How are planets born?
Another investigation, which was attended by the University of Santiago de Chile (Usach), also used data from the Alma Radio Cotel, according to a statement from the Observatory, and advanced computational simulations to reproduce a Evolutionary sequence of protoplanetary discs.
The model proposes to differentiate planetary discs in five evolutionary stages, which go from demonstrations of “low structure” to the formation of growing planets.
The results of the study behind this project, headed by the researcher at the Institute of Astrophysics of La Plata (Argentina), Santiago Orcajo, were published in the magazine Earth and Planetary Astrophysics.
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