41.   The largest structure in the universe is even bigger than astronomers once believed.

42.   The telescope spent two days collecting ultraviolet light emitted by interstellar gas and dust, material that astronomers believe is evolving into new stars and planets.

43.   Laney said the fact that the fragment, one of the smallest, did not break up meant the comet pieces were more resilient than astronomers initially believed.

n. + believe >>共 628
official 8.24%
police 7.86%
analyst 6.69%
expert 4.89%
people 4.77%
investigator 4.12%
authority 4.01%
scientist 3.11%
observer 2.53%
researcher 1.72%
astronomer 0.25%
astronomer + v. >>共 242
say 12.35%
be 7.04%
believe 4.66%
have 3.36%
think 3.14%
find 3.03%
hope 2.82%
use 2.71%
see 2.38%
know 2.17%
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