A high school senior has been arrested after a cleaning woman found an improvised explosive device and other materials inside a Tempe home where she was working.

In the galaxy of big-screen superheros — a rather glum lot — Robert Downey Jr.'s Iron Man is the snappy one.

It’s been nearly 10 years since his science-fiction indie “Primer” left audiences spellbound, which makes the arrival of Shane Carruth’s “Upstream Color” an even more momentous occasion.

WASHINGTON — Airline passengers will have to leave their knives at home after all. And their bats and golf clubs.

Fittingly for a guy who’s about to become “big time,” Dion Jordan’s life has been hectic.

A suspicious letter containing an oily substance that was sent to the Phoenix office of Sen. Jeff Flake caused a brief scare Wednesday before the mail was tested and found to be harmless.

LONDON — Tesco, Britain's largest retailer by sales, is to pull out of the U.S., selling off its lossmaking Fresh & Easy supermarket chain after it failed to transfer its winning formula from the U.K. to the western states.

Runners in the East Valley are a tight community. If any two enthusiasts don’t know each other, there’s a good chance they know someone who knows someone who they’ve crossed a finish line with.

It was a lovely sight on a lovely Monday afternoon, and Shane Burcar wanted a picture.

It was a lovely sight on a lovely Monday afternoon, and Shane Burcar wanted a picture.

Gun rights

BOSTON — The bombs that ripped through the Boston Marathon crowd were fashioned out of ordinary kitchen pressure cookers, packed with nails and other fiendishly lethal shrapnel, and hidden in duffel bags left on the ground, people close to the investigation said Tuesday.

Arizona authorities say a package addressed to Sheriff Joe Arpaio discovered in a northern Arizona mailbox would have exploded if opened, leading to serious injuries or death.

The way Sonny Borrelli sees it, if you could drive a big rig in a war zone, navigating Arizona traffic should be a breeze.

Down a run with two outs in the bottom of the sixth, McClintock’s Andi Blodgett smacked a clutch two-run single to complete a nine-run rally as the Chargers’ beat visiting Westwood 10-9, Tuesday.

The Maricopa County confirmed its first positive mosquito sample for West Nile Virus was found last month in the East Valley.

Updated baseball rankings, as of March 18:

The official transition for the renaming of Mesa’s Eighth Street to Rio Salado Parkway began this week, when dual-named street signs were installed along the road between Country Club Drive and the Loop 101 freeway.

PHILADELPHIA — A former Arizona State University professor has been ordered to stand trial for allegedly claiming to have explosives at Philadelphia's iconic Liberty Bell.