The new Euclid telescope will deliver more data in a few days than Hubble has captured in more than 33 years.
of Euclid’s initial test shots. Equipped with two cameras, the VIS camera for high-resolution images in visible light and the NISP camera designed to measure infrared light, the Euclid consortium aims to learn about how dark matter and dark energy influence the structure of the cosmos and understand more about the earliest objects in the universe.
Euclid’s imagers are astounding. The VIS instrument comprises 36 CCD image sensors that capture 609 megapixels of image data, just under 17 megapixels per sensor. VIS will be able to see billions of images in visible light. Before light reaches NISP’s detector, it goes through either a photometry filter or a spectrometry ‘grism.’ This image was captured during a 100-second exposure using the grism mode. During typical operation, exposures can be up to five times longer, exposing light from many more distant galaxies. Each vertical streak is one star or galaxy, and the light from each is split across wavelengths, allowing scientists to determine what each galaxy is made of.
Early commissioning test image — VIS instrument full field of view and zoom for detail | © ESA/Euclid/Euclid Consortium/NASA, CC BY-SA 3.0 IGO Early commissioning test image — NISP instrument | © ESA/Euclid/Euclid Consortium/NASA, CC BY-SA 3.0 IGO
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