Katelan casey is an astronomer at the university of texas at austen. She's going to use the web to go back hundreds of millions of years, even farther than the hubble took us. We are looking for the first light that turned on at the very beginning of cosmic time and its impact on its surroundings. Webb will allow us to see the faintest galaxies at the edge of the detectable, observable universe.
To look into deep space is to look back in time. Ahead of the launch of the James Webb Space Telescope, Unexplainable talked to scientists who hope to see “cosmic dawn,” a period long ago when the first starlight transformed the universe.
Transcript at vox.com/todayexplained
Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts
Learn more about your ad choices. Visit podcastchoices.com/adchoices