Monday, August 28, 2023

One of The Earliest Galaxies Ever Seen

 From Science Alert:

A red blob lurking in the background of a deep image of space has now been validated as one of the earliest galaxies known in the Universe. It's called Maisie's Galaxy, and spectroscopic analysis has confirmed the James Webb Space Telescope observed the object as it appeared just 390 million years after the Big Bang. That's not quite as early as scientists initially thought, but it is now officially one of the earliest confirmed galaxies in the Universe. According to a team led by astronomer Pablo Arrabal Haro of the US National Science Foundation's NOIRLab, the results not only help confirm the early Universe is indeed way more populated than we expected, but that care is needed in analyzing the JWST observations.

"The exciting thing about Maisie's galaxy is that it was one of the first distant galaxies identified by JWST, and of that set, it's the first to actually be spectroscopically confirmed," says astronomer Steven Finkelstein of the University of Texas at Austin, who named the galaxy in honor of his daughter, on whose birthday the galaxy was discovered last year. (Read more.)
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