WASHINGTON (AP) — Federal investigators looking into the cause of the January collision between a passenger plane and a U.S. Army helicopter near Washington, D.C., which resulted in the death of 67 ...

SIOUX CENTER—Centre Mall is hosting the 33rd annual Model Airplane Show 9 a.m.-3 p.m. Saturday, March 8, in Sioux Center. The show is free and open to the public. Model aircraft of all types will be ...

Boom Technology CEO Blake Scholl shared a photo of President Donald Trump holding a model of the company's supersonic airliner (@bscholl/X) WASHINGTON, DC: Eagle-eyed netizens did what they do ...

(NEXSTAR) — Seventeen people, including a child, were injured after a Delta Air Lines flight from Minneapolis experienced an “incident upon landing” in Ontario, Canada, Monday afternoon.

This is an R package primarily designed for marginal hazard ratio estimation in clustered failure time data. The core of "marcox" is a semiparametric marginal proportional hazards model based on ...