StarTalk @StarTalkRadio
The red blip, or GLASSz-13 has a z value of 13, telling us it existed just 300 million years after the Big Bang. However, new papers awaiting peer review speak of observed galaxies with z values even as high as 20. @MBKplus made a useful graph to help us understand their age. https://t.co/WKm5NRYx6G — PolitiTweet.org