Fill in the Blanks Universe_Gap FillOnline version Fill in the missing words. by Katja Golouh 1 Astronomers planets spacecrafts galaxies life probes silent Uranus objects Neptune stars astronauts naked exists Universe Sun planet rockets telescopes observe Venus only solar revolving cold Universe is everything that . There are many different floating in our . There are many , , falling stars , black holes and . In the middle of our system is the . There are eight planets around it . Our is called the Earth . It is the planet that has on it . Others are Mars , , Jupiter , Saturn , Mercury , and . Today people travel to space by , and shuttles . People who travel to Space are called . are people who our Universe . Today they use and . In the past they observed the sky with the eye . Our Universe is big , dark , and .