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At the speed of junk

Ever since the launch of the world鈥檚 first satellite in 1957, we鈥檝e been sending stuff into space. While originally useful, millions of pieces are now just junk. And they鈥檙e floating fast in space. Even a small object can have a big impact, especially if it collides head-on with something moving at a similar speed.

 

Debris size (cm): 0.3

Mass (g): 0.038

Kenetic energy (J): 1,910

Energy similar to: bullet

 

Debris size (cm): 1

Mass (g): 1.41

Kenetic energy (J): 70,700

Energy similar to: falling piano

 

Debris size (cm): 5

Mass (g): 176.7

Kenetic energy (J): 8,840,000

Energy similar to: hit by a bus

 

Debris size (cm): 10

Mass (g): 1,413.7

Kenetic energy (J): 70,700,000

Energy similar to: large bomb