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Cosmos Web

All articles tagged with #cosmos web

astronomy2 years ago

"James Webb Space Telescope Uncovers Elusive Monster Galaxy Hidden in Dust"

The James Webb Space Telescope has rediscovered a mysterious dusty galaxy, known as AzTECC71, that had vanished from view after its initial detection by ground telescopes and the Hubble Space Telescope. These "Hubble dark galaxies" are difficult to observe at normal optical wavelengths due to the absorption of light by surrounding dust, making infrared detection crucial. The recent detection suggests that these dusty star-forming galaxies may be more common than previously thought and could provide insights into the early universe. The COSMOS-Web project, in which Webb is participating, aims to map one million galaxies and study the optical and infrared properties of heavily dust-obscured galaxies.

astronomy2 years ago

"James Webb Space Telescope captures stunning image of resurrected ghost galaxy"

The James Webb Space Telescope (JWST) has captured an image of a previously elusive dusty star-forming galaxy, AzTECC71, which had disappeared from Hubble Space Telescope images. This discovery suggests that such galaxies may be more common in the early universe than previously thought. The COSMOS-Web collaboration, led by researchers at the University of Texas at Austin, aims to map up to 1 million galaxies using JWST to study the earliest structures of the universe. The JWST's sensitivity to infrared light allows it to penetrate the dust veils surrounding these galaxies, providing new insights into their properties and evolution.