The most distant quasar and the earliest known supermassive black hole have been discovered, shedding light on how massive galaxies formed in the early universe.
원문출처 : https://www.cnn.com/2021/01/14/world/most-distant-quasar-black-hole-scn-trnd/index.html
원문출처 : https://www.cnn.com/2021/01/14/world/most-distant-quasar-black-hole-scn-trnd/index.html