Hubble constant
01
ハッブル定数, ハッブルパラメータ
(cosmology) a measure of the rate at which the universe is expanding, determined from the observation of distant galaxies' recession velocities
例
The Hubble constant tells us how quickly the universe is expanding.
ハッブル定数は、宇宙がどれだけ速く膨張しているかを教えてくれます。
