Webb Telescope Trailer

Orbiting through space nearly a million miles from Earth, the Webb telescope will open up new expanses of the near and distant universe to our view.

Webb's infrared-detecting gaze will penetrate clouds of dust within our own galaxy to reveal previously hidden secrets, and reach back in space and time to view the very edge of the cosmos.

telescope section image

The James Webb Space Telescope

Unlock the Answers

Webb will be the largest telescope ever launched, an engineering marvel crafted to not only endure the rigors of space, but turn them to its advantage. Find out how Webb will work.

NASA’s James Webb Space Telescope Could Potentially Detect the First Stars and Black Holes

Apr 25, 2018
The first stars in the universe blazed to life about 200 to 400 million years after the big bang.