Start the day smarter. Get all the news you need in your inbox each morning. Here's what to know about the Jesus nut: The ...

Harrowing video showed the doomed Big Apple sightseeing helicopter fall out of the sky into the Hudson River on Thursday as ...

The Jesus nut is the main rotor holding nut, or pin, that holds the main rotor to the mast of some helicopters, according to science and tech website Technology.org. The nut is a fist-sized steel ...