1/14/2024 0 Comments James webb space telescope launchHowever, this does not mean there is less information: it simply comes down to the wavelengths in which the material in the object is emitting its light. In this newest image of Cas A, colours were assigned to NIRCam’s different filters, and each of those colours hints at different activity occurring within the object.Īt first glance, the NIRCam image may appear less colourful than the MIRI image. Infrared light is invisible to our eyes, so image processors and scientists represent these wavelengths of light with visible colours. But many of those features are invisible in the new NIRCam image, and astronomers are investigating why that is. In April 2023, Webb’s MIRI ( Mid-Infrared Instrument) started this story, revealing new and unexpected features within the inner shell of the supernova remnant. However, astronomers have now entered a new era in the study of Cas A. Over the years, ground-based and space-based observatories, including the NASA/ESA Hubble Space Telescope, have collectively assembled a multiwavelength picture of the object’s tattered remains. This high-resolution look unveils intricate details of the expanding shell of material slamming into the gas shed by the star before it exploded.Ĭas A is one of the best-studied supernova remnants in all the cosmos. Webb’s NIRCam (Near-Infrared Camera) view of Cas A displays a very violent explosion at a resolution previously unreachable at these wavelengths.
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