There are thousands of pieces of debris floating around in orbit, bits of old satellite or rocket even tools dropped in the past by space-walking astronauts.

有成千上万枚碎片在围绕轨道运动，可能是老旧的卫星，火箭，甚至过去进行太空漫步的宇航员遗落的工具。

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We can even talk to astronauts (if you know any) while they're space-walking.

我们甚至能与正在太空行走的宇航员们交谈(如果你认识)。

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He has set records in space walking and has logged more than 687 hours in space.

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During the dive, which takes up to four hours due to the high density of the water (it is filled with certain chemicals plus air pressure to simulate the circumstances found in space), the cosmonauts in training practice space walking -- and may lose a few kilos off their waist line in the strenuous process.

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Its micro-meteoroid protection is inadequate, so space-walking astronauts will have to install additional shielding, though not until 2004.

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