London — The Monday collision between a cargo ship and an oil tanker in the North Sea "has a high risk of being an environmental disaster in really important protected areas," Naomi Tilley ...

President Donald Trump and billionaire Elon Musk’s push to downsize the federal government is reverberating in Arizona. The state is home to tens of thousands of federal employees. Plus ...

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The interphase interaction between water flow and sediment and particle collision in sediment laden flow will modulate the flow turbulence. Due to the complexity of suspended sediment movement, the ...

Due to the extreme conditions in the deep sea, its ecosystems and high biodiversity (made up mostly of small organisms living in the sediment) are particularly sensitive to disturbances.

PHOENIX — Arizona authorities are investigating a fiery crash that killed four people and left two others in critical condition after multiple vehicles and tractor-trailers collided on ...

The investment will allow TSMC to begin making artificial intelligence and smartphone chips in Arizona, Mr. Trump said. With the commitment, TSMC brings its planned total spending in the United ...

The Arizona Wildcats (19-10, 13-5) were blown out by the Iowa State Cyclones (22-7, 12-6) 84-67 in Hilton Coliseum on Saturday night. Iowa State led by 13 at halftime and Arizona never got closer ...

TUBA CITY, AZ — A minor earthquake shook parts of northern Arizona early Saturday morning, according to the U.S. Geological Survey. The quake struck just before 4:15 a.m., southeast of Tuba City.

The National Weather Service issued red flag warnings on Feb. 28 for a wide swath of Arizona, including Maricopa, Pima, Pinal, Graham, Greenlee, Santa Cruz and Cochise counties. The warnings run ...