Penguins swim in a pool in the Belgrade Zoo, in Belgrade, Serbia, July 2, 2019. (AP Photo/Darko Vojinovic)
People view a total solar eclipse in La Higuera, Chile, July 2, 2019. (AP Photo/Esteban Felix)
The sun rises behind midtown Manhattan and the Empire State Building in New York City, July 3, 2019. (Gary Hershorn/FOX News)
A man rides his motorcycle as the sun rises in the outskirts of Frankfurt, Germany, July 4, 2019. (AP Photo/Michael Probst)
The Lincoln Memorial is enveloped in smoke as fireworks burst along the Potomac River in celebration of Independence Day in Washington, July 4, 2019. (AP Photo/J. David Ake)
San Diego Padres starting pitcher Chris Paddack works against a St. Louis Cardinals batter during the third inning of a baseball game in San Diego, June 29, 2019. (AP Photo/Gregory Bull)
North Korean leader Kim Jong Un and President Donald Trump shake hands over the military demarcation line at the border village of Panmunjom in Demilitarized Zone, June 30, 2019. (Korean Central News Agency/Korea News Service via AP)
President Donald Trump walks on the North Korean side of the border with North Korean leader Kim Jong Un at the border village of Panmunjom in the Demilitarized Zone, South Korea, June 30, 2019. (AP Photo/Susan Walsh)
Police officers hit protesters with pepper spray as they use a cart to ram into the glass wall of the Legislative Council in Hong Kong, July 1, 2019. (Steve Leung/HK01 via AP)
Members of a Chinese honor guard stand at attention during a welcome ceremony for Bulgarian President Rumen Radev at the Great Hall of the People in Beijing, July 3, 2019. (AP Photo/Mark Schiefelbein)
A model wears a creation for Iris van Herpen Haute Couture Fall-Winter 2019-2020 fashion collection presented in Paris, July 1 2019. (AP Photo/Francois Mori)
Alex Morgan of the U.S. pretends to sip tea as she celebrates scoring their second goal with teammate Rose Lavelle in Lyon, France, July 2, 2019. (REUTERS/Lucy Nicholson)
United States' Coco Gauff reacts after beating Venus Williams in a women's singles match during day one of the Wimbledon Tennis Championships in London, July 1, 2019. (AP Photo/Tim Ireland)
Argentina's Lionel Messi reacts during their Copa America semifinal soccer match loss against Brazil in Belo Horizonte, Brazil, July 2, 2019. (AP Photo/Natacha Pisarenko)
Britain's Prince Harry and Meghan, Duchess of Sussex pose for a picture with players of the New York Yankees before their game against the Boston Red Sox in London, June 29, 2019. (REUTERS/Peter Nicholls)
The moon blocks the sun during a total solar eclipse in La Higuera, Chile, July 2, 2019. (AP Photo/Esteban Felix)
The Orion test capsule and a Minotaur 4 booster rocket, fall to the Earth during a full-stress launch abort test by NASA in Cape Canaveral, Fla., July 2, 2019. (Joe Burbank/Orlando Sentinel via AP)
Fireworks are launched from the Brooklyn Bridge during Macy's Independence Day fireworks show in New York City, July 4, 2019. (Gary Hershorn/FOX News)