'We can’t take [an image of] blank sky [with Webb]. Everywhere we look, there’s galaxies everywhere.” JWST
“First of all, it’s really gorgeous. And it’s teeming with galaxies,” said JWST Operations Scientist Jane Rigby at the July 12 briefing. “That’s been true of every image we’ve taken with Webb. We can’t take [an image of] blank sky. Everywhere we look, there’s galaxies everywhere.”The galaxies captured in the first released image lie behind a cluster of galaxies about 4.6 billion light-years away.
This composite of images, revealing thousands of galaxies, is the deepest view of the universe ever captured — a record astronomers don’t expect to last long.Although that first image represents the deepest view of the cosmos to date, “this is not a record that will stand for very long,” astronomer Klaus Pontoppidan of the Space Telescope Science Institute in Baltimore said in a June 29 news briefing. “Scientists will very quickly beat that record and go even deeper.
Newborn stars sculpt the gas and dust around them in this JWST image of the Cosmic Cliffs in the Carina nebula, a star-forming region in the Milky Way galaxy.“We’re seeing brand new stars that were previously completely hidden from our view,” said NASA Goddard astrophysicist Amber Straughn. JWST captured an image of the Southern Ring nebula in near-infrared and mid-infrared light, highlighting wispy structures at the nebula’s edge and revealing a second star in the middle.“You see this bubbly, almost foamy appearance,” said JWST astronomer Karl Gordon, of the Space Telescope Science Institute. In the left hand image, which captures near-infrared light from JWST’s NIRCam instrument, the foaminess traces molecular hydrogen that formed as dust expanded away from the center.
“This is a very important image and area to study,” because it shows the sort of interactions that drive the evolution of galaxies, said JWST scientist Giovanna Giardino of the European Space Agency.
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