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There were many problems last week. Next week, officials warned, could be just as bad.

Early clues point to a conventional, if still tragic, probe.

The defense bill passed last week adds requirements to ensure the safety of GPS.

Agency calls resignations ’€œunderstandable.’€

Most popular diesel single ever, a record fine for Boeing and a Philadelphia drone pilot is sorry he blew off the FAA.

The view out the back window was amazing on this early-morning instrument cross-country.

The camera angle of the snow and the skis and the mystery plane is just perfect.

The builder calls his machine a UFO, but it doesn’t stand for what you think.

The video, recently shared by Edwards Air Force Base, shows the entire flight. It is spellbinding.

Here’s the second half of the top stories for a year defined by its challenges.