JWST Uncovers Clues to the Birth of a Giant Exoplanet
TL;DR
Using JWST imaging of 29 Cygni b, a ~15-Jupiter-mass exoplanet about 133 light-years away, researchers find the planet is unusually metal-rich and its orbit aligns with its star, suggesting it may have formed in a protoplanetary disk via bottom-up accretion rather than simple direct collapse. This links the formation of some of the Milky Way’s most massive planets to the same disk-based processes that birth smaller worlds.
Topics:sciencespace#29-cygni-b#exoplanets#james-webb-space-telescope#planet-formation#protoplanetary-disk#space
- How do supergiant exoplanets form? James Webb Space Telescope finds a clue Space
- NASA’s Webb Redefines Dividing Line Between Planets, Stars NASA Science (.gov)
- JWST Observations Redefine Just How Big A Planet Can Get – And It's Bigger Than We Thought IFLScience
- Webb Observations Challenge Fundamental Mass Limits satnews.com
- JWST Captures Exoplanet 29 Cygni b: Redefines Planet–Star Boundary DIYPhotography
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