This is what is called an anti-collision light required by all aircraft flying in US airspace.

这就是所谓的反防撞灯，所有在美国领空飞行的飞机需要。

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SYSTEMS: Electrical system, powered by 12v DC alternator, includes navigation, panel and map lights, dual landing lights, anti-collision light and battery.

系统：电气系统，由12 V直流发电机供电，包括导航，面板和地图灯，双落地灯，防撞灯和电池。

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The accident occurred when Sanchez blew through a red stop light and plowed into a freight train. 25 people were killed in the collision (including Sanchez), and 135 were injured.

调查人员发现，造成这起事故的通勤火车司机Robert Sanchez曾在工作时发送短信，可能使他错过前方指示停车的红色灯号，而撞上一班货运列车，这起事故中造成25人死亡(包括Sanchez本人)，135人受伤。

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By examining the resulting charge and light produced in this collision, scientists can determine whether dark matter was involved.

CNN: How particle smasher and telescopes relate

And when such a collision does occur, the pattern of light produced gives away not only the type of neutrino, but the direction it was travelling in.

ECONOMIST: Neutrinos

If all we do is change our light bulbs to compact fluorescents, we will face a catastrophic collision with reality.

FORBES: Alex Steffen