Celebrations marking America's 250th birthday have contended with record-breaking heat and a severe thunderstorm on Friday.

In an innovative way to decrease the mosquito population, when one of the male ZAP mosquitoes being released mates with a ...

Take a Ride on Us program offered for the 4th of July ...

The Transportation and Environment Committee is holding part two of its public hearing Thursday afternoon to get government witnesses' thoughts on a new bill.

Phoenix city leaders unanimously approved joining a first-of-its-kind water partnership aimed at protecting communities from ...

Public outcry after the collision led to the modernization of air traffic control.

Add Yahoo as a preferred source to see more of our stories on Google. A look at stories making headlines in Washington, ...

An extreme heat alert has been issued across the region as people gear up for the holiday weekend.

NASA is set to share an update on its plans to establish a long-term Moon Base, outlining progress on future lunar lander ...

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