Southwest Airlines Boeing 737 MAX aircraft are parked at Southern California Logistics Airport in Victorville, California, March 27, 2019. (Mario Tama/Getty Images)
People visit the Vessel at Hudson Yards as the sun sets in New York City, March 27, 2019. (Gary Hershorn/FOX News)
The moon rises behind midtown Manhattan and the Empire State Building in New York City, March 23, 2019. (Gary Hershorn/Fox News)
A passenger jet on approach to Newark Liberty International Airport flies over the setting sun in Newark, New Jersey, March 27, 2019. (AP Photo/J. David Ake)
The U.S Capitol is seen at sunrise in Washington, March 24, 2019. (AP Photo/Alex Brandon)
A woman in wedding attire poses for a photo portrait along a busy street in Xi'an in northwestern China's Shaanxi Province, March 28, 2019. (AP Photo/Mark Schiefelbein)
One of three Sumatran tiger cubs born at the Taronga Zoo explores its habitat March 22, 2019, in Sydney, Australia. (Rick Stevens/Taronga Zoo Sydney via AP)
Commuters are seen through the window of a public bus as they travel in central Vinnytsia, Ukraine, March 27, 2019. (AP Photo/Emilio Morenatti)
Prince Charles drives a vintage car with his wife Camilla, Duchess of Cornwall in Havana, Cuba, March 26, 2019. (AP Photo/Ramon Espinosa)
A sign reading "LET US VOTE" is set up outside Parliament by the public and civic organization Avaaz in London, March 27, 2019. (AP Photo/Frank Augstein)
Special Counsel Robert Mueller exits St. John's Episcopal Church after attending services, across from the White House in Washington, March 24, 2019. (AP Photo/Cliff Owen)
Bolivia's "Batallon Colorados," sing the national anthem during an event honoring national hero Eduardo Abaroa, who died in the 1879-1883 War of the Pacific, as part of Sea Day celebrations in La Paz, Bolivia, March 23, 2019. (AP Photo/Juan Karita)
A Boeing 737 MAX 8 airplane sits on the assembly line in Boeing's 737 assembly facility, in Renton, Washington, March 27, 2019. (AP Photo/Ted S. Warren)
A vintage TWA Lockheed Constellation airplane is transported along 6th Avenue on its way to Times Square in New York City, March 23, 2019. (Gary Hershorn/FOX News)
A technician arranges guitars from the collection of David Gilmour, guitarist, singer and songwriter of Pink Floyd, at Christie's auction rooms in London, March 27, 2019. (AP Photo/Kirsty Wigglesworth)
A large flag is unfurled during the national anthem before an opening day baseball game between the New York Yankees and the Baltimore Orioles at Yankee Stadium in New York, March 28, 2019. (AP Photo/Seth Wenig)