Image: NASA’s Webb Telescope Links Galaxies Near and Far (SVS14269 - webb peas spectral 2160)
Description: The James Webb Space Telescope’s Near-Infrared Spectrograph captured the chemical fingerprints of selected galaxies behind SMACS 0723, including three faint, distant objects. When corrected for the wavelength stretch caused by the expansion of space over billions of years, the spectra of these galaxies (shown in red) exhibit features emitted by oxygen, hydrogen, and neon that show a stunning resemblance to those seen from so-called green pea galaxies found nearby (in green). Additionally, the Webb observations made it possible to measure the amount of oxygen in these cosmic dawn galaxies for the first time. The spectral lines have been stretched vertically in order to clarify these relationships. Credit: NASA’s Goddard Space Flight Center/Rhoads et al. 2023
Usage Terms: Public domain
Image usage
The following page links to this image:
.png){kind=link}