JWST peeks 4.4-billion-year-old galaxy cluster, a cosmic time machine

The James Webb Space Telescope captured the galaxy cluster MACS J0553.4-3342, formed about 4.4 billion years ago using its near‑infrared camera (NIRCam). The article highlights JWST’s ability to serve as a time machine by viewing light that has traveled across cosmic distances, revealing a cluster in its formative stages, a capability that extends beyond what Hubble has shown. It also reminds readers that light from stars visible to the naked eye has similarly traveled huge distances to reach us, offering a glimpse into the universe’s past both through advanced telescopes and everyday starlight.