Special thanks
to our supporters

  • Charles Weesner
  • Michael Piccarreta
  • Mary Beth Haralovich
  • Jim & Shirley Kiser
  • Michael Racy
  • Chuck Huckelberry
  • Dylan Smith
  • Facebook
  • Hunter S. Thompson
  • Ernie Pyle
  • Ethics and Excellence in Journalism Foundation
  • & many more!

We rely on readers like you. Join them & contribute to the Sentinel today!

Hosting provider

Proud member of

Local Independent Online News Publishers Authentically Local Local First Arizona Institute for Nonprofit News
Final assembly in 2015 of the OSIRIS-REx spacecraft, which launched in 2016. University of Arizona teams had been working on the project for more than a decade when it reached a near-Earth asteroid, Bennu, this week and executed a touch-and-go mission to briefly “tag” the surface, collect soil samples and head back to orbit.

A spacecraft made in collaboration with the UA made contact with an asteroid on Tuesday and collected samples that researchers hope will provide a better understanding of the formation of our solar system. Read more»

The united colors of outer space, at the International Space Station.

Think Russia has no way to put pressure on the United States? Think again. If you use a cellphone, have a GPS system in your car, or get cash from ATMs, you should be worried. Read more»

The U.S. Navy variant of the F-35 Joint Strike Fighter, the F-35C, conducts a test flight over the Chesapeake Bay.

The Pentagon failed to supervise the design and construction of its new fleet of F-35 stealth warplanes adequately, its own auditor concluded on Sept. 30, placing the blame squarely on military brass for performance and safety problems in the largest and most expensive weapons program in history. Read more» 1

The littoral combat ship USS Freedom (LCS 1) conducting sea trials off the coast of Southern California.

Some Senate lawmakers are pushing back against the Navy's effort to accelerate production of the troubled Littoral Combat Ships. Read more»

A target missile blasts off from Kodiak Island, Alaska, for a tracking test involving radars and sensors on Feb. 24, 2006.

The Pentagon is repeatedly taking risks by using old or untested missile parts, and paying hundreds of millions of dollars in extra costs Read more»

A mockup of the F-35 Joint Strike Fighter in 2002.

The troubled F-35 fighter jet, which is supposed to serve as the backbone of the U.S. military’s future air combat forces, may cost much more than the nation can afford, a federal auditor told a Senate panel Wednesday. Read more» 1

F-35 Joint Strike Fighter

New funds provided for the troubled F35 just before the sequester. Read more»

Marana Mayor Ed Honea tries out the F-35 cockpit simulator Wednesday at the Sargent Air and Defense facility.

Sargent Aeropace & Defense, a Marana government contractor, showed off a low-level F-35 flight simulator on Monday morning to about 50 employees and guests. Read more»

FBI Director Robert Mueller speaks in front of the Senate Judiciary Committee in July. Mueller is getting support for an extension of his tenure with the agency, but he's failed to update the bureau's computerized case-management system.

For all his accomplishments, FBI Director Robert Mueller has failed at the same IT management task that bedeviled his predecessor and has cost taxpayers hundreds of million of dollars—the development of a computerized case tracking system within the bureau. Read more»

Crewmembers from Coast Guard Air Station Detroit perform rescue training on a HH-65 ‘Dolphin’ helicopter, Mar. 10.

In the wee-morning hours after the Deepwater Horizon exploded, a Coast Guard rescue helicopter being dispatched to pluck oil rig survivors floating in the fire-engulfed waters could not launch because its hoist was broken. Read more»