The merger between L3 Technologies and Harris Corp. is forming another major defense firm. "This industry is all about scale, and this gives us scale to compete," said Christopher Kubasik, head of L3.

Many of the latest Pentagon weapons systems are vulnerable to cyberattack, according to a review by the Government Accountability Office. Testers repeatedly took control of systems without being detected.

New weapons systems for the F-22 have been validated by the Air Force. The weapons, developed by Lockheed Martin, give the fighter jet more attack range and a broader targeting field.

CACI is helping the Army ensure success of the new Terrestrial Layer System, which is designed to give US fighters the ability to jam enemy signals.

The new Gulfstream G500 features the PW800 series engine built by Pratt & Whitney Canada. Gulfstream delivered the first G500 last month.

Embraer has added two Praetor jet models to the Legacy line of business aircraft.

Space-based sensors could be the answer to detecting a new class of hypersonic weapons being developed by China and Russia. A new satellite constellation would be able to track this threat, according to the Missile Defense Agency.

The International Space Station is stocked with enough supplies to last six months. Russian flights to ISS have been suspended due to the recent launch failure of a Soyuz rocket.

The disappearance of journalist Jamal Khashoggi in Saudi Arabia is stoking public criticism of US arms sales to the kingdom. The Trump administration has voiced its support for a $110 billion arms deal with Saudi Arabia.

Shantell "Princess" Pooser was inducted as an American Airlines flight attendant at her 17th birthday party, which was held at South Carolina's Columbia Metropolitan Airport. The teen has Down syndrome and a terminal illness that requires frequent flights to Cincinnati Children's Hospital.