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Good morning. It is November 13, and at this time we’re touring 4.3 billion light-years away from Earth, to a cluster of galaxies generally known as MACS0416. This distant object, which seems to be two galaxy clusters which can be colliding with each other, was first found in pictures captured by the Hubble Space Telescope.
Hubble, after all, introduced “deep subject” astronomy alive by publishing pictures with hundreds of galaxies. Now, by combining Hubble observations with the brand new James Webb Space Telescope, NASA and its companions have produced a fair deeper subject picture. The ensuing panchromatic picture, which mixes seen and infrared mild, provides us one of the vital complete views of the Universe ever obtained.
Here’s a little bit bit extra from NASA about how this picture was composed:
To make the picture, on the whole the shortest wavelengths of sunshine had been color-coded blue, the longest wavelengths purple, and intermediate wavelengths inexperienced. The broad vary of wavelengths, from 0.4 to five microns, yields a very vivid panorama of galaxies.
Those colours give clues to galaxy distances: the bluest galaxies are comparatively close by and infrequently present intense star formation, as greatest detected by Hubble, whereas the redder galaxies are typically extra distant and are greatest detected by Webb. Some galaxies additionally seem very purple as a result of they comprise copious quantities of cosmic mud that tends to soak up bluer colours of starlight.
If this all makes you are feeling a little bit bit smaller, that is OK.
Source: NASA, ESA, CSA, STScI.
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