The Star That Redefined the Universe

Delta Cephei is a visible star located in the constellation Cepheus. It is uniquely variable and provided astronomers with a new tool to measure the universe with. This important star is the prototype of a class of stars called Cepheid Variables. This video tells that story and the story of the woman, Henrietta Leavitt, who revealed the potential in these stars.

Видео The Star That Redefined the Universe канала ScienceOnline