Okay, here’s a breakdown of the key information from the provided text:
* Discovery: Astronomers have discovered a barred spiral galaxy named COSMOS-74706.
* Age: This galaxy existed over 11.5 billion years ago, making it one of the oldest barred spiral galaxies observed.
* telescopes Used:
* James Webb Space Telescope (JWST): Initial detection.
* Space Telescope Science Institute (STScI): Data analysis support.
* Multi-Object Spectrograph for Infrared Exploration (MOSFIRE) on the Keck I telescope: Confirmed the galaxy’s age.
* Presentation: The findings were presented on January 8th, 2026, at the 247th meeting of the American Astronomical Society (AAS) in Phoenix, Arizona.
* Galaxy Types: The Hubble Sequence categorizes galaxies as elliptical, spiral, or lenticular. Spiral galaxies evolve from irregular disks and feature arms extending from a central bulge.
* Barred Spirals: Barred spirals (like our Milky Way) have a bar-shaped structure in their centers. This bar influences the galaxy’s evolution by directing gas towards the central supermassive black hole and affecting star formation.
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