Facebook CEO Mark Zuckerberg delivers the keynote speech during Facebook Developer Conference F8 2019 at the McEnery Convention Center in San Jose, California, United States on April 30, 2019. (Photo by Yichuan Cao/Sipa USA)
Kilauea volcano erupts yet again on the afternoon of May 25, 2018 in Pahoa, Hawaii, United States, sending ash and debris high up to the sky. (Photo by Yichuan Cao/Sipa USA)
SpaceX Chief Engineer Elon Musk speaks to media in front of Crew Dragon cleanroom at SpaceX Headquarters in Hawthorne, California on October 10, 2019. (Photo by Yichuan Cao/Sipa USA)
President Donald J. Trump Speaks to Military at Marine Corps Air Station Miramar
Elizabeth Holmes, founder and former CEO of Theranos, arrives for motion hearing on Monday, November 4, 2019, at the U.S. District Court House inside Robert F. Peckham Federal Building in San Jose, California. (Photo by Yichuan Cao/Sipa USA)
A Miko, or shrine maiden, is seen running at the Shiba Daijingu Shrine during the busy night of New Year's Day, when people pray for good fortune in Tokyo, Japan on January 1, 2020. (Photo by Yichuan Cao/Sipa USA)
Kate Lyn Moussavian (front left) and Zoe Brydon (front right) lead the march of Los Altos High School students during a walkout as part of global action on climate change in Los Altos, California, United States on March 15, 2019
Chef Michael Smith is putting sauce on a turkey at Salvation Army Harbor Light Center before the annual Turkey carving event in San Francisco, California, United States on Wednesday, November 27, 2019. (Photo by Yichuan Cao/Sipa USA)
Marie Kondo, founder of KonMari Media, Inc. and tidying expert, speaks at Rakuten Optimism 2019 conference in San Francisco, California on October 23, 2019. (Photo by Yichuan Cao/Sipa USA)
Trees are silhouetted by the lava shooting upwards from an opening in one of the many fissures in the Leilani Estates neighborhood on the evening of May 25, 2018 in Pahoa, Hawaii, United States. (Photo by Yichuan Cao/Sipa USA)
Martin Scorsese attends the special advance screening of 'The Irishman' at the Castro Theatre in San Francisco, California, United States on Tuesday, November 5, 2019. (Photo by Yichuan Cao/Sipa USA)
A United Airlines Boeing 777-300ER flies over the Golden Gate Bridge during Fleet Week 2019 in San Francisco, California on October 11, 2019 (Photo by Yichuan Cao/Sipa USA)
Young climate activists and protesters gather in front of investment firm BlackRock's office and block the entrance in San Francisco, California, on December 6, 2019, advocating the company to divest fossil fuel. (Photo by Yichuan Cao/Sipa USA)
Apple Inc. CEO Tim Cook attends Stanford University's 128th Commencement in Stanford, California, United States on June 16, 2019. (Photo by Yichuan Cao/Sipa USA)
Prime Minister of Japan Shinzo Abe holds press conference after the conclusion of a successful G20 Summit at INTEX Osaka, Japan on June 29, 2019.
North Korean leader Chairman Kim Jong Un's motorcade departs St. Regis Hotel at 8:10am in Singapore on June 12, 2018. (Photo by Yichuan Cao/Sipa USA)
A mural painted by artist Shane Grammer is seen in a destroyed home in Paradise, California, United States on February 18, 2019. Three months after the deadly wildfire, the city of Paradise is in the process of recovery. (Photo by Yichuan Cao/Sipa USA)
Family members of the Oakland Ghost Ship warehouse fire victim gathered to mourn over their loss during a candlelight vigil at Lake Merritt on December 6, 2016
Lily Collins attends the 2018 Breakthrough Prize at NASA Ames Research Center on December 3, 2017 in Mountain View, California. (Photo - Yichuan Cao / Sipa USA)
Young climate activist holds a sign in front of investment firm BlackRock's office in San Francisco, California, United States on Friday, December 6, 2019, as they advocate the company to divest fossil fuel. (Photo by Yichuan Cao/Sipa USA)
Third generation Japanese American Karen Kai is working on decorating the world's largest origami Christmas tree with handfold origami cranes in San Francisco, California, United States on December 7, 2019. (Photo by Yichuan Cao/Sipa USA)
A Samsung conference attendee is using her Samsung Galaxy Fold smartphone to take a selfie during Samsung Developer Conference in San Jose, California on October 29, 2019. (Photo by Yichuan Cao/Sipa USA)
Air Force One flies towards Itami Airport, passing over Osaka's landmark Osaka Castle amidst heavy rain and humidity. U.S. President Donald Trump has arrived in Osaka for G20 Summit. The Summit is being held at INTEX in Osaka, Japan on June 27, 2019 (Phot
President Barack Obama appearing with former Secretary of State Hillary Clinton at Charlotte Convention Center, North Carolina, July 5, 2016
Macy's Christmas tree is lit up at Union Square in San Francisco, California, United States on December 7, 2019. (Photo by Yichuan Cao/Sipa USA)
Two North Korean men can be seen on a speedboat, cruising down south on Yalu River towards the Sino-Korean Friendship Bridge in Dandong, Liaoning Province, China on October 30, 2018. (Photo by Yichuan Cao/Sipa USA)
Rakuten CEO and founder Hiroshi Mikitani speaks at Rakuten Optimism 2019 conference in San Francisco, California on October 23, 2019. (Photo by Yichuan Cao/Sipa USA)
Charlize Theron attends the screening of Tully during San Francisco International Film Festival at Castro Theatre in San Francisco, California on April 8, 2018. (Photo by Yichuan Cao/Sipa USA)
Senator Bernie Sanders holds a presidential rally at Fort Mason in San Francisco, California, United States on March 24, 2019. (Photo by Yichuan Cao/Sipa USA)
A mural of Swedish climate activist Greta Thunberg painted by Andres Cobre Petreselli is seen on the wall of a building in San Francisco, California, United States, on December 7, 2019. (Photo by Yichuan Cao/Sipa USA)
A memorial for the victims was set up after the mass shooting in Las Vegas, Nevada, that took 58 lives, October 28, 2017.
Samsung President & CEO DJ Koh speaks during Samsung Developer Conference in San Jose, California on October 29, 2019. (Photo by Yichuan Cao/Sipa USA)
Jessica Alba attends “Refinery29’s 29Rooms: Turn it Into Art,” on June 20, 2018 in San Francisco, California, United States. (Photo by Yichuan Cao/Sipa USA)
An inflatable Trump Chicken is being displayed at San Francisco City Hall on April 15, 2017
Karlie Kloss attends the eighth annual Breakthrough Prize – the “Oscars of Science”, on Sunday, November 3, at NASA Ames Research Center in Moffett Field, California. (Photo by Yichuan Cao/Sipa USA)
Anti-Trump protesters gathered at 18th St. and Castro St. for a short rally, San Francisco, California, USA., November 13, 2016
Hundreds of people gather at Justin Herman Plaza in San Francisco to smack each other with pillows during the annual Valentine's Day pillow fight on Feb. 14, 2017.
A Secret Service agent stands guard as U.S. President Donald Trump settles into his presidential limo, known as "The Beast". President Donald Trump arrives at McCarran International Airport onboard Air Force One for Nevada Republican Party Convention on J
Tokyo Tower with Christmas illumination is seen from Roppongi Hills in Tokyo, Japan on December 25, 2019. (Photo by Yichuan Cao/Sipa USA)
Democratic presidential candidate Andrew Yang holds a campaign rally in San Francisco, California, United States on March 15, 2019. (Photo by Yichuan Cao/Sipa USA)
A young girl was holding a sign during a protest at SFO. Protesters gather at the International Terminal's arrival hall at San Francisco International Airport on January 29, 2017 against Trump's Muslim ban.
Nana Ou-Yang attends the 2018 Breakthrough Prize at NASA Ames Research Center on December 3, 2017 in Mountain View, California. (Photo by Yichuan Cao / Sipa USA)
A North Korean civilian is seen riding bicycle on the eastern bank of Yalu River from Dandong, Liaoning Province, China on October 29, 2018. (Photo by Yichuan Cao/Sipa USA)
A tri-colored Donald Trump bust is found half-melted in what was formerly the garage of a house in Sonoma County, California. The house was completely burnt down by the fire that devastated Sonoma, Napa and Santa Rosa, October 17, 2017.
Facebook CEO Mark Zuckerberg delivers keynote speech at McEnery Convention Center on May 1, 2018 in San Jose, California, United States. (Photo by Yichuan Cao/Sipa USA)
Thomas Fire burning near Highway 101, spreading towards houses by the ocean near Highway 1 on December 6, 2017 in Ventura, California, United States. (Photo by Yichuan Cao/Sipa USA)
French President Emmanuel Macron has arrived at Osaka Geihinkan for G20 Summit cultural program. The Summit is being held at INTEX in Osaka, Japan on June 28 and June 29, 2019 (Photo by Yichuan Cao/Sipa USA)