22 Of The Most Powerful Photos Of This Week

Frost covers University of Minnesota student Daniel Dylla's face during a morning jog along Mississippi River Parkway on Jan. 29, in Minneapolis.

A pedestrian stops to take a photo by the Chicago River, as a bitter cold phenomenon called the polar vortex has descended on much of the central and eastern United States, in Chicago, Jan. 29.

A Metra train moves southbound to downtown Chicago as the gas-fired switch heater on the rails keeps the ice and snow off the switches, Jan. 29.

House Speaker Nancy Pelosi signs legislation before sending it to President Donald Trump for his signature to end the partial government shutdown, in Washington, DC, on Jan. 25.

Roger Stone offers a Nixon salute after his appearance at Federal Court in Fort Lauderdale, Florida, on Jan. 25.

Pro-EU and pro-Brexit protesters discuss the vote and ongoing political processes as they demonstrate near the Houses of Parliament in London, Jan. 29.

Jerome Rodrigues, one of the leaders of the Yellow Vests, lies on the street after getting wounded in the eye during clashes with riot police in Paris on Jan. 26.

Firefighters recover the body of a victim of Friday's dam collapse at an iron ore mine belonging to Brazil's giant mining company Vale, near the town of Brumadinho, on Jan. 28.

A member of a rescue team washes his face after returning from a rescue mission, following the collapse of a tailings dam owned by Brazilian mining company Vale SA, in Brumadinho, Brazil, on Jan. 27.

Somali firefighters try to extinguish burning cars at the scene where a car bomb exploded in front of a restaurant in Mogadishu, Somalia, on Jan. 29.

A girl with her puppy surveys the destruction left behind by a tornado in Havana, Cuba, on Jan. 28.

Catarina Alonzo, mother of Felipe Gomez Alonzo, an 8-year-old boy who died in the custody of US Customs and Border Protection, looks into the coffin with the remains of her son during his funeral at a home village of Yalambojoch, Guatemala, on Jan. 27.

MS-13 gang members wait to be escorted upon arrival at the maximum security jail in Zacatecoluca, El Salvador, on Jan. 31.

Indian students throws rose flower petals over a portrait of Mahatma Gandhi on his 71st death anniversary, at Marina Beach in Chennai, India, on Jan. 30.

A Holocaust survivor visits Auschwitz on International Holocaust Victims Remembrance Day in Oswiecim, Poland, Jan. 27.

French forensic doctor Philippe Charlier examines the Guano mummy in a laboratory at the Cultural Heritage Institute of Ecuador in Quito on Jan. 30.

Gallery assistants inspect the Christian Dior: Designer of Dreams exhibition at the Victoria & Albert Museum in London on Jan. 30.

Angela Bassett, Lupita Nyong'o, and Danai Gurira pose backstage during the 25th Screen Actors Guild Awards with their statuettes for Outstanding Performance by a Cast in a Motion Picture for Black Panther on Jan. 27.

Japan's Naomi Osaka poses with her trophy after winning her match against the Czech Republic's Petra Kvitova during the Australian Open Women's Singles Final in Melbourne on Jan. 26.

An airplane taking off from LAX is seen in the center of the iconic Randy's Donuts sign, repainted to celebrate of the Los Angeles Rams' Super Bowl bid, in Los Angeles, Jan. 29.

An Indian man feeds migratory seagulls at the Narmada River on Jan. 29.

Two men ride a traditional sled called a Schnabler during a race in Gaissach, Germany, Sunday, Jan. 27.