Look at the Earth from space. Why does our planet look so blue?

从太空中看向地球。为什么我们的星球看起来如此之蓝？

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Data from NASA's Chandra X-ray Observatory (purple) are shown here along with optical data from the Hubble Space Telescope (red, green, blue).

美国宇航局钱德拉X射线天文台(紫)以及光学数据：哈勃空间望远镜(红，绿，蓝)。

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Green shows optical data from the Hubble Space Telescope, and blue at the galaxy's core represents radio data from the Very Large Array in New Mexico.

绿色部分则是来自于哈勃太空望远镜的光学数据；位于墨西哥的甚大阵射电望远镜接受的无线电数据则贡献了星系中心的蓝色部分。

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The first pictures of Earth taken from space showed a solid ball covered by brown and green landmasses and blue-green oceans.

VOA: special.2011.01.04

"But that fits into the way he does business, " Pearlman said, noting Bezos' other venture into space flight, Blue Origins, which aims to make human space flight cheaper and easier.

CNN: Amazon chief plans to recover Apollo engines from seafloor

The van was photographed by a member of the public after it had been left in a space reserved for blue badge holders.

BBC: Council vehicle

The most famous edit in that film is when the apes throw bone up into the air and then there's a cut - and that is a spaceship floating beautifully through space to the Blue Danube music.

NPR: Space Race Permeated Pop Culture