The team analyzed colored pixels of objects and backgrounds in 20,000 photographs of natural and artificial objects.
该团队分析了 20,000 张自然和人造物体照片中物体和背景的彩色像素。
英语百科
Lists of artificial objects
（重定向自Artificial object）
The term artificial objects is closely associated with man made or not naturally occurring items that have been sent into space. This is a list of lists of artificial objects in space found on Wikipedia.
For the general concept of artificial see Artificiality.
For artificial objects not in space, see Category:Inventions or List of inventions.