How does the James Webb Space Telescope observe distant galaxies?

The James Webb Space Telescope looks at faraway galaxies by acting like a giant super-powered eye in space.

Imagine you're trying to see a tiny firefly way across a dark field. From where you are, the firefly seems almost invisible because it's so small and far away. That’s kind of like what happens with distant galaxies, they’re super tiny and super far away. But the James Webb Space Telescope has super sharp eyes that can zoom in on those tiny fireflies and see all their glowing lights.

The telescope uses something called mirrors, which are like giant magnifying glasses. These mirrors catch the light from the galaxies and reflect it to special cameras inside the telescope. It’s like when you use a magnifying glass to look at tiny letters in a book, the bigger the magnifying glass, the clearer everything looks.

Because the light from those faraway galaxies has been traveling for billions of years, the James Webb Space Telescope is like a time traveler. It sees what the galaxies looked like when they were babies, super young and glowing bright!