James Webb Space Telescope can see objects 13.5 billion years old

The James Webb Space Telescope (JWST) launched in 2021, is 930,000 miles from Earth, with a mirror 21 feet in diameter, three times larger than Hubble. It can see objects 13.5 billion years old, like Earendel, one of the farthest stars observed. JWST can see objects nine times fainter than Hubble, focusing on the universe's early stages, not the Big Bang. Scientists study ancient galaxies for insights.