artist's concept of astronauts outside the cupola window of the space station. - 天文台 幅插畫檔、美工圖案、卡通及圖標看窗外, 太空人
boy and girl scout groups go on a field trip to a planetarium to learn about the earth, stars and space - 天文台 幅插畫檔、美工圖案、卡通及圖標兒童, 童年
astronomer royal's camp at sahdol, india, the solar eclipse of january 22, 1898, 19th century vintage photograph - 天文台 幅插畫檔、美工圖案、卡通及圖標
mr maunder's party, observers living tents at talni, india to observe the solar eclipse of january 22, 1898, 19th century vintage photograph - 天文台 幅插畫檔、美工圖案、卡通及圖標
yerkes observatory, williams bay, wisconsin, usa, halftone print, published 1899 - 天文台 幅插畫檔、美工圖案、卡通及圖標名勝古蹟
the observatory of the kaiser wilhelm university of strasbourg, built in 1881 during german rule, is the modern-day strasbourg astronomical observatory and a research and education center - 天文台 幅插畫檔、美工圖案、卡通及圖標
observatory building in new york — a domed structure stands on a quiet hill above trees and open grounds, a place where science meets solitude and distant horizons - 天文台 幅插畫檔、美工圖案、卡通及圖標
vector illustration for learning the alphabet for children with cartoon images. letter a for astronomer. - 天文台 幅插畫檔、美工圖案、卡通及圖標
astrophysical observatory potsdam, brandenburg, germany, wood engraving, published in 1880 - 天文台 幅插畫檔、美工圖案、卡通及圖標
