Science 25 Read and complete. Use: Astronauts, Moon, Sun, orbit, tourist, Earth. SPACE FACTS! Nicolaus Copernicus was the first person who said that the Earth went round the 1) Sun. Footprints made by astronauts on the 2) will stay there forever because there is no wind to blow them away. A day on Mercury is as long as 59 days on 3) 4) are taller in space. 00 W The dog Laika was the first living creature to 5) the Earth. In April 2001, Dennis Tike became the first spac 6)​