Nature Podcast

JWST shows an ancient galaxy in stunning spectroscopic detail

May 17, 2023
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INSIGHT

JWST Studies Ancient Galaxy JD-1

  • JWST is used to study JD-1, one of the most distant known galaxies, providing insights into the early universe.
  • JD-1 was initially discovered by the Hubble Space Telescope, but limited information was available.
INSIGHT

JWST's Enhanced Capabilities

  • JWST's capabilities extend beyond Hubble's, capturing longer infrared wavelengths emitted by distant galaxies.
  • Its spectroscopic capabilities allow for detailed analysis of light composition, revealing elements like oxygen and carbon.
INSIGHT

Gravitational Lensing

  • Gravitational lensing, caused by massive galaxies, acts as a magnifying glass, making distant objects appear brighter.
  • This effect allows scientists to observe JD-1 in triplicate due to light warping around a galaxy cluster.
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