In a dramatic new discovery, scientists have identified over 15,000 kilometers of ancient riverbeds on Mars, revealing that ...

A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

Loss of navigational skills is one of the first symptoms of dementia, and developing a better sense of direction may help ward off decline in brain function.

The rail line, which is expected to link Phoenix to Tucson, received assent from the Federal Railroad Administration in June.

Ancient hunter-gatherers built monumental mounds at Kaillachuro in Peru without kings, rewriting history of "monumental ...

The Independent Redistricting Commission's plan for Arizona likely results in 4 Republican, 3 Democratic and 2 "competitive" congressional districts in the state.

The affected bottles of Topo Chico were shipped to five states: Arizona, Louisiana, New Mexico, Nevada, and Texas. Coca-Cola has owned the sparkling mineral water brand Top Chico since 2017.

The discovery of more than 15,000 kilometres of ancient riverbeds on Mars suggests that the Red Planet may once have been ...

Arizona, the Grand Canyon State, offers a diverse landscape from scorching deserts to pine-clad mountains. Discover Arizona's map, geography, fascinating facts, rich history, major cities, and top ...

Steve Kerr, signing autographs prior to the 1988 Final Four, helped lead Arizona to one of the most memorable seasons in program history and the UA’s first-ever No. 1 ranking. Photos by ...