eli5: NASA has a telescope that can see the creation of stars and planets billions of years ago, how? Link is in description

Question

[Telescope](https://www.reddit.com/r/interestingasfuck/comments/ke2p2r/nasa_is_about_to_launch_a_telescope_that_can/?utm_source=share&utm_medium=ios_app&utm_name=iossmf)

In: Technology

Answer 1

Light takes a very long time to reach us from very far away in deep space. The events that this telescope will show us will have happened billions of years ago but the light to let us see them is only just getting here because they happened billions of light years away.