cosmic distance ladder; cosmological distance ladder
Technical astronomy term for the succession of methods used to determine distances to celestial objects.
The cosmic distance ladder is a chain of methods for measuring distances from nearby stars to distant galaxies.
Standard kanji spelling for this astronomy term.
Mixed kanji-kana spelling; may be easier for learners.
Calque of English 'cosmic distance ladder'; 宇宙 (universe) + の (possessive particle) + 距離 (distance) + 梯子 (ladder).