Aerospace and defense industry

FILE - In this March 13, 2019, file photo a traveler checks in with Southwest Airlines at Seattle-Tacoma International Airport in Seattle. Southwest Airlines Co. reports earns on Thursday, April 25. (AP Photo/Ted S. Warren, File)

FILE - In this March 20, 2019 file photo, Acting Defense Secretary Patrick Shanahan speaks at the Center for Strategic and International Studies in Washington. A U.S. official says the Pentagon’s watchdog agency has cleared Shanahan of wrongdoing in connection with allegations that he had used his official position to favor his former employer, Boeing Co. (AP Photo/Andrew Harnik)

FILE - In this March 23, 2019, file photo, Will Smith arrives at the Nickelodeon Kids' Choice Awards in Los Angeles. Smith, NASA, Fortnite and Disney are among the 2019 Webby Award winners for internet excellence. The International Academy of Digital Arts and Sciences announced the winners Tuesday, April 23, 2019. (Photo by Richard Shotwell/Invision/AP, File)

In this photo released by Xinhua News Agency, Chinese President Xi Jinping reviews an honor guard before boarding the destroyer Xining at a pier in Qingdao, east China's Shandong Province, Tuesday, April 23, 2019. Xi urged closer ties between the world's navies on Tuesday, amid tensions over China's rapid expansion of its naval forces and forceful assertions of territorial claims in the South China Sea. (Li Gang/Xinhua via AP)

In this image taken from NASA Television, Cygnus capsule arrives at the International Space Station with food galore, following a 1 1/2-day journey from Virginia, Friday, April 19, 2019. Space station astronaut Anne McClain used a robot arm to capture the capsule as they soared 250 miles (402.32 kilometers) above Earth. (NASA TV via AP)

In this 1960 photo made available by NASA, Jerrie Cobb prepares to operate the Multi-Axis Space Test Inertia Facility (MASTIF) at the Lewis Research Center in Ohio. The three-axis rig was developed to train Project Mercury pilots in bringing a spinning spacecraft under control. The two controllers in Cobb's hands activated small nitrogen gas thrusters that were used to bring the MASTIF under control. She was one of several female pilots who underwent the skill and endurance testing that paralleled that of the Project Mercury astronauts. In 1961 Jerrie Cobb was the first female to pass all three phases of the Mercury Astronaut Program. NASA rules, however, stipulated that only military test pilots could become astronauts and there were no female military test pilots. Cobb, NASA’s first female astronaut candidate, died in Florida at the age of 88 on March 18, 2019. (NASA via AP)

FILE - In this April 10, 2019, file photo provided by the North Korean government, North Korean leader Kim Jong Un attends the 4th Plenary Meeting of the 7th Central Committee of the Workers' Party of Korea in Pyongyang. North Korea has test-fired a "new-type tactical guided weapon," its state media announced Thursday, April 18, 2019, a move that could be an attempt to register the country's displeasure with currently deadlocked nuclear talks with the United States without causing those coveted negotiations to collapse. (Korean Central News Agency/Korea News Service via AP, File)

Northrop Grumman's Antares rocket lifts off the launch pad at NASA Wallops Flight Facility in Wallops Island , Va., Wednesday, April 17, 2019. A fresh grocery shipment is on its way to the International Space Station after launching from Virginia. (AP Photo/Steve Helber)

FILE - In a March 13, 2019 file photo, an American Airlines Boeing 737 MAX 8 sits at a boarding gate at LaGuardia Airport in New York. American Airlines is canceling 115 flights per day through mid-August because of ongoing problems with the Boeing 737 Max aircraft. (AP Photo/Frank Franklin II, File)