Follow-up observations of a distant galaxy suggest its age is about 13.4 billion years.
, which ends with a view of Maisie’s galaxy. The visualization moves through space at a rate of 200 million light-years per second, a reminder of how massive space is, and just how much stuff is in it.CEERS’ goal is to image a large swath of space using Webb’s Near-Infrared Camera , its Mid-Infrared Instrument , and its spectrograph .
That galaxy, CEERS-93316, was emitting light in a way that made it appear bluer than normal, a color associated with very earlier galaxies. The issue was corrected in the recent paper, indicating the importance of verifying galaxy ages using spectroscopic methods.In a sense, Finkelstein noted, the corrected number was a good thing, because the galaxy’s brightness seemed improbable for its apparent age.
The Webb telescope has only been producing scientific images for a year. With more time, it may reveal galaxies even older than those precisely measured by the CEERS team.
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