The giant space rocks created a spectacular trail of debris as they collided at 11, 000mph - five times the speed of a rifle bullet - between the orbits of Mars and Jupiter.

巨大的太空岩石以每小时11 000英里——五倍于步枪的速度在火星和木星轨道间相撞，形成壮观的碎片尾迹。

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Scientists had thought that these black holes with way-too-healthy appetites came about because of merging galaxies, which forced material into the black holes whenever they collided.

科学家们曾认为这些胃口太好的黑洞是由合并的星系形成的，迫使物质在碰撞时落入黑洞。

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They collided with another ship.

他们与另一艘轮船相撞。

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Unmanned aerial systems, sometimes called drones, and other remote-controlled planes could pose a risk to larger passenger aircraft if they collided or were sucked into an engine.

CNN: Pilot reports spotting 'drone' over Brooklyn

But they collided over Mr Duhalde's own ambitions.

ECONOMIST: Argentina's collapse

The 49ers secondary was so good that on two occasions, two of its defensive backs had such a clear shot at an interception that they actually collided in mid-air.

WSJ: NFL: The 49ers Defensive Effort Falls Short