Measuring the expansion rate of the universe was one of the Hubble Space Telescope's main goals when it was launched in 1990.
원문출처 : https://www.cnn.com/2022/05/23/world/hubble-universe-expansion-rate-scn/index.html
원문출처 : https://www.cnn.com/2022/05/23/world/hubble-universe-expansion-rate-scn/index.html