Webb sees through dust and gas into regions out of reach of optical telescopes such as Hubble, revealing new galaxy views.
The James Webb Space Telescope peered through dust and gas to reveal star formation in a rare wheel-shaped galaxy that formed in a long-ago galactic crash.
Infrared light, which is essentially heat, penetrates through dust clouds, allowing the James Webb Space Telescope to peer into regions of space that are obscured to optical telescopes, such as Hubble. In the new images, Webb instruments NIRCam and MIRI, revealed individual stars within the star-forming regions in the outer ring of the Cartwheel galaxy, as well as clusters of very young stars around the galaxy's central supermassive black hole, which is also shrouded in dust.
The crash altered its shape and structure to what astronomers can see today, forming two ring-like structures, one surrounding the galactic center and another framing the entire galaxy. The two rings expand outward from the galaxy's center like "ripples in a pond," the Space Telescope Science Institute , which operates Webb and is based in Maryland, said in a statement.
The Webb observations also reveal areas rich in hydrocarbons and silicate dust, which form the spokes connecting the inner and outer ring. Earlier Hubble images could also distinguish the spokes, but the new Webb observations make these features much clearer, STScI said.
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