While Hubble pictures of celestial objects are awe-inspiring, they are flat 2-d photographs.

哈勃拍的天体照片让人惊叹，但它们是二维的。

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We have special software to analyse these signals, because when you look at celestial objects through the equipment we have, you also pick up a lot of noise.

我们有专门用来分析信号的软件，利用它可以去掉观测过程中带入的噪音。

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Gravitational lensing takes advantage of the fact that large celestial objects such as stars or planets warp the fabric of space-time such that light rays passing nearby are bent.

引力透镜利用这样的一个现象：巨大的天体会扭曲它附近的时空组成物。比如，当光线经过恒星或行星附近时会发生弯曲。

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When out of sight of land, they used a sextant and took bearings from celestial objects to determine their position.

FORBES: DEDuced Reckoning is Assembling the Mosaic!

NASA's Kepler telescope is permanently on the lookout for celestial objects of interest, and its latest discovery is a small one.

ENGADGET: NASA's Kepler telescope spies smallest planet to date, no aliens

The idea is that Gaia's two telescopes will focus the stars on to the end of the array, and as these celestial objects then scan across the CCDs their positions and individual properties will be logged.

BBC: A billion pixels for a billion stars