| 1. | Many astronomers believe phobos was never part to mars
很多天文学家认为火卫一并非来自于火星本身。 |
| 2. | Astronomers think it is rocky , like the earth , and that it may harbour liquid water
天文学家认为它岩石很多，象地球一样，可能还保有液态水。 |
| 3. | Babylonian astronomers believed the sun moved around the earth every three hundred sixty - five days
古巴比伦的的天文学家认为太阳每365天绕地球一周。 |
| 4. | For these reasons , astronomers favor a more starlike formation scenario for brown dwarfs
因为这些理由，天文学家认为棕矮星的起源，较倾向恒星形成的方式。 |
| 5. | Astronomers believe the star ' s magnetic field caused the outburst , but do not understand how
天文学家认为，这种星球的磁场导致了爆炸的发生，但是，他们不明白是如何发生的。 |
| 6. | The astronomer believes the meteorite was a giant rock and probably the largest known to have struck norway
天文学家认为陨星是一个巨大的石块，可能在挪威是已知最大的一块。 |
| 7. | Astronomers believe that the universe is expanding - that all points in the universe are getting farther apart all the time
天文学家认为宇宙正在膨胀，即是说宇宙中所有的点都在彼此远离。 |
| 8. | For much of the 20th century , the notion that stellar collisions might be worth studying seemed ludicrous to astronomers
20世纪有一大段的时间里，天文学家认为恒星碰撞也许值得研究的看法荒诞可笑。 |
| 9. | The cosmos is postulated by some astronomers as a big balloon without boundaries , with stars and galaxies scattered on the surface
宇宙天文学家认为宇宙其中一个模式有如一个大气球，没有边界，表面散布著恒星与星系。 |
| 10. | The planet , believed to be either rocky like earth or covered with oceans , is seen as a promising target in the search for extraterrestrial life
天文学家认为这颗行星可能象地球一样多山或者被海洋覆盖，是搜寻外星人的理想目的地。 |
