Fast-forming alien planet has astronomers intrigued


  • World
  • Friday, 22 Nov 2024

An artist's depiction of a planet and its host star with a misaligned disk of material, and a binary companion in the background, is shown in this undated handout image. NASA/JPL-Caltech/R. Hurt, K. Miller (Caltech/IPAC)/Handout via REUTERS

WASHINGTON (Reuters) - Astronomers have spotted orbiting around a young star a newborn planet that took only 3 million years to form - quite swift in cosmic terms - in a discovery that challenges the current understanding of the speed of planetary formation.

This infant world, estimated at around 10 to 20 times the mass of Earth, is one of the youngest planets beyond our solar system - called exoplanets - ever discovered. It resides alongside the remnants of the disk of dense gas and dust circling the host star - called a protoplanetary disk - that provided the ingredients for the planet to form.

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