JWST

The James Webb Space Telescope has turned the sky into a gallery of tiny, bright red spots that scientists call little red dots, or LRDs. These points appear in nearly every deep‑field image the telescope captures and have puzzled astronomers since Webb began its mission four years ago. Astronome

Imagine trying to measure the growth of a garden only to find that your ruler and your friend's yardstick give you different results. That's a bit like what astronomers are dealing with when they try to figure out how fast the universe is expanding. They look at old light from the early universe and