"Chomper," a semi-autonomous, GPS-guided snow blower designed and built by MIT research engineer Dane Kouttron, clears snow following an overnight storm in Cambridge, Massachusetts, U.S., February 28, 2019.

DATE IMPORTED:03 March, 2019The SpaceX Crew Dragon capsule approaches in a photograph taken by NASA astronaut Anne McClain aboard the International Space Station March 3, 2019. Anne McClain/NASA/Handout via REUTERS

Military band members rehearse ahead of the opening session of the Chinese People's Political Consultative Conference (CPPCC) at the Great Hall of the People in Beijing, China March 3, 2019. REUTERS/Jason Lee TPX IMAGES OF THE DAY - RC1D9E152CA0

People look at flames of fire as dry grass and bushes burn near the village of Ivanovka, Crimea March 3, 2019.

A car drives along a five-kilometre-long road, which is supervised by regional traffic services to connect the banks of the ice-covered Yenisei River during winter season, south of Krasnoyarsk, Russia March 3, 2019.

Marie Joseph Cesar reacts as she pays her respects to her late brother Mackerson Joseph, who was killed during anti-government protests, before a mass at a church in Port-au-Prince, Haiti March 4, 2019.

Cara Delevingne and other models react while presenting creations by late designer Karl Lagerfeld as part of his Fall/Winter 2019-2020 women's ready-to-wear collection show for fashion house Chanel at the Grand Palais during Paris Fashion Week in Paris, France March 5, 2019.

A family photograph sits placed on the remains of a tree outside a destroyed home after two deadly back-to-back tornadoes, in Beauregard, Alabama, U.S., March 5, 2019.

A Balinese man holds a burning coconut shell during Mesabetan Api, a purification ritual to enter the holy day of Nyepi, which is a day of silence for self-reflection to celebrate the Balinese Hindu New Year, in Gianyar, Bali, Indonesia March 6, 2019.

A student sits with her head in her hands as U.S. first lady Melania Trump visits the Dove School of Discovery during a two-day, three-state tour promoting her "Be Best" initiative in Tulsa, Oklahoma, U.S., March 4, 2019.

Revellers from the Vila Isabel samba school perform during the second night of the Carnival parade at the Sambadrome in Rio de Janeiro, Brazil March 4, 2019.

Giant fennel plants are seen on a hillside overlooking Gnejna Bay, outside the village of Mgarr, Malta March 5, 2019.

A boy looks at the camera near Baghouz, Deir Al Zor province, Syria March 5, 2019.

Police members stand guard as lawyers protest to denounce an offer by President Abdelaziz Bouteflika to run in elections next month but not to serve a full term if re-elected, in Algiers, Algeria March 7, 2019.

A man looks at Venezuelan bolivar notes hung to resemble a tree, in Caracas, Venezuela March 6, 2019.

A woman looks at a view of Seoul shrouded by fine dust during a polluted day in Seoul, South Korea, March 6, 2019.

The Aurora Borealis (Northern Lights) is seen in the sky over Arctic Snowhotel in Rovaniemi, Finland February 28, 2019.

People dressed as penguins play at a playground on the "Rosenmontag" (Rose Monday) in Cologne, Germany, March 4, 2019.

Flames are burning at the scene where a suicide car bomb exploded targeting a Mogadishu hotel in a business center in Maka Al Mukaram street in Mogadishu, Somalia. February 28, 2019. REUTERS/Feisal Omar TPX IMAGES OF THE DAY - RC16781B49D0

Students from some of London's all girls' schools, take pictures of the 'Fearless Girl' statue unveiled by State Street in the financial district of London, Britain, March 5, 2019.

A pair of Peregrine Falcons mate while perched on a branch along the Palisades Cliffs above the Hudson River in State Line Lookout Park in Alpine, New Jersey, U.S., March 4, 2019.

A house with an X painted on it is seen across a hillside of wreckage after two deadly back-to-back tornadoes, in Beauregard, Alabama, U.S., March 4, 2019.

War-wounded Abdullah Ayed, 21 year-old man from Yemen, tries his 3D-printed prosthetic limb at the MSF-run hospital in Amman, Jordan February 27, 2019.

Children from the Yazidi community, who were recently freed after being captured by Islamic State fighters, ride on a back of a truck near Baghouz, Deir Al Zor province, Syria March 6, 2019.