James Webb Space Telescope observes 72 stars and finds planet formation is a race against time
Using the James Webb Space Telescope (JWST), astronomers have studied 72 young, sun-like stars.
As a result, they found that forming planets is a real race against time.
This is because the material that serves as the building blocks for planets is constantly escaping the swirling platters of gas and dust, or protoplanetary disks , that wrap around infant stars.
Some types of planets may find their formation window closing sooner than others.
The team's research represents the most in-depth investigation yet into how matter escapes these protoplanetary disks and how this escape gives rise to different stages of planet formation around sun-like stars.
All in all, the study helps paint a better picture of how and why our solar system took the shape it did around the infant sun around 4.6 billion years ago.
"Gas giants like Jupiter must assemble their massive atmospheres while the disk is still substantial enough to supply them, before winds and jets carry that raw material away into space," team leader Naman Bajaj from the University of Arizona said in a statement .
An ill wind blows around infant stars The team conducted its research using data collected by the JWST’s Mid-Infrared Instrument (MIRI) .
The scientists tracked matter loss by following the movements of molecular hydrogen, one of the most common molecules in protoplanetary disks.
Each of the stars involved in the investigation represented a different stage in the early life of a star system.
That meant putting these snapshots together allowed the researchers to create a "movie" detailing the early life of a planetary system.
One of the most important findings of this approach is the mechanisms for material loss from protoplanetary disks seem to evolve and switch dominance as an infant star ages.
This is important because gas giants like Jupiter and Saturn have vast atmospheres.
They thus require more raw material to form than smaller rocky worlds like Earth do.
5News aggregated this summary from the outlet’s public feed. The full article, with all the context, is on www.space.com — the content belongs to Space.com.
