Webb’s 255-hour-long observation reveals invisible dark matter in a map area containing nearly 800,000 galaxies

ⓘ NASA An image of the James Webb Space Telescope Using its Near-Infrared Camera (NIRCam), NASA’s James Webb Space Telescope peered into a region for a total of about 255 hours. This exceptionally long observation allowed astronomers to trace dark matter by studying how its gravity distorts and influences theContinue Reading