1、a leading American radio-astronomer,

2、No astronomer could believe this.

3、It's too ugly, the astronomer said.

4、"It's too ugly," The astronomer said.

5、A prominet Soviet astronomer puts it well.

6、Sergio: You've become an astronomer. I wouldn't have guessed it.

7、Houston likes to bring up one story from an astronomer.

8、In 1930, a young astronomer named Clyde Tombaugh found Pluto.

9、An astronomer can determine the brightness of each star.

10、And an astronomer said, "Master, what of Time?"

11、The astronomer looks at the starry sky, trying to locate Centaur

12、"Everybody has a scary story about someone getting scooped," says New York University astronomer David Hogg.

13、In 10,000 hours you could have learned enough to become an astronomer or engineer.

14、That year, the astronomer Giuseppe Piazzi in Palermo, Italy, discovered what he thought was a planet.

15、Even small eclipses get him juiced and should be fascinating to any amateur astronomer.

16、For a time, it was the residence of important 13th century Persian scholar and astronomer Nasir al-Din al-Tusi.

17、Martin Rees, the astronomer royal, calls the search for extraterrestrial life the most important scientific endeavour of our time.

18、Sun Lan was a well-known Chinese geographer, astronomer, mathematician, historian, painter and calligrapher in the17 th century.

19、This dark cloud is an example of a "Bok globule," named after the late University of Arizona astronomer Bart Bok.

20、On that occasion, the American astronomer Professor Simon Newcomb led a party to South Africa to observe the event.

21、When Zhang Heng, the Chinese astronomer and geographer, wanted to draw a map of the heavens, he wasn't satisfied with a simple paper map.

22、American astronomer George Ellery Hale built a number of great telescopes, including the 100-inch Hooker telescope on Mount Wilson outside Los Angeles.

23、Back in the mid nineties, a different astronomer tried exactly the same trick to get themselves some fame and discredit astrology.

24、Kuiper crater is named for Gerard Kuiper, a Dutch-American astronomer who was also a member of the Mariner 10 team.

25、A British astronomer was analyzing a spectrograph of sunlight, and he noticed a particular pattern of spectral lines that didn't match anything in the library.

26、The planet was only just beginning to come into focus, in the metaphorical sense: The Dutch astronomer Christiaan Huygens had just recently revealed Saturn's rings and its first known moon, Titan.

27、An astronomer using the array can peer deep into the core of a quasar some 12 billion light-years distant for an unparalleled close-up of jets of matter shooting out at speeds approaching that of light.

28、The wisdom of the day was derived from Ptolemy, an astronomer of the second century, whose elaborate system of the sky put Earth at the center of all heavenly motions.

29、David L. Crawford, a retired astronomer who heads the International Dark-Sky Association, said recent studies suggest about 70 percent of the people in the United States cannot see the Milky Way because of light pollution.