アメリカ自然史博物館さんのインスタグラム写真 - (アメリカ自然史博物館Instagram)「Exhibit of the Day: Scales of the Universe! Displayed along the 400-foot-long walkway that hugs the glass curtain wall on the second level of the Rose Center for Earth and Space, the Scales of the Universe vividly illustrates the vast range of sizes in the universe, from subatomic particles and objects on the human scale to the largest objects in the observable cosmos. The exhibit features realistically rendered planets, including a 9-foot-diameter model of Jupiter and Saturn with rings 17 feet in diameter, that hang from the ceiling. The 87-foot-diameter Hayden Sphere in the middle serves as the central reference for illustrating the relative sizes of galaxies, stars, planets, cells, and atoms. For example, if the sphere represents the Milky Way galaxy, a typical star cluster within it is the size of a baseball! Photo: D. FInnin/© AMNH」5月30日 21時54分