February 20, 2014

A 200-meter-high chimney, built from about 7,000 tons of concrete, bricks and steel, is brought down in a controlled explosion at Port Kembla, south of Sydney, Australia. Nearly 1,000 explosive charges were placed around the copper stack, which broke into at least two pieces just before hitting the ground as thousands of people gathered to watch the explosion.

Protesters burn as they stand behind burning barricades during clashes with police in Kyiv. Ukraine's embattled leader announced a "truce" with the opposition as he prepared to get grilled by visiting EU diplomats over clashes that killed 26 and left the government facing diplomatic isolation.

A Somali woman carries her belongings as she flees from the Heliwa district in the north of the capital Mogadishu, Somalia. Residents in Mogadishu said that hundreds of families were fleeing the capital after a spike in the number of clashes between militants and pro-government troops.

Egypt Al-Ahly fans chant slogans in support of their team ahead of the African Super Cup final football match against Tunisia's Club Sportif Sfaxien in Cairo.

Residents collect water from a water tank in Balakong, outside Kuala Lumpur, Malaysia. Residents in some areas of Klang Valley faced water shortage caused by dams running low on water due to dry weather, according to local sources.

A fan is stuck by a jumping cholla cactus on the 15th hole during the first round of the World Golf Championships - Accenture Match Play Championship at The Golf Club at Dove Mountain in Marana, Arizona, USA, Feb. 19, 2014. (Credit: Allan Henry-USA TODAY Sports)

This is the first map of radioactivity in a supernova remnant, the blown-out bits and pieces of a massive star that exploded. The blue color shows radioactive material mapped in high-energy X-rays using NuSTAR. (Image Credit: NASA/JPL-Caltech/CXC/SAO)

South Korea's Kim Hae-jin competes during the free skating program at the 2014 Sochi Winter Olympics, Russia.

The car driven by Parker Kligerman (30) goes over cars driven by Paul Menard (27) and Ryan Truex (83) as Trevor Bayne (21) drives past during practice for Sunday's NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Florida, USA, Feb. 19, 2014.

A fan of the U.S. dressed in a costume in the colors of the national flag gestures ahead of the women's ice hockey gold medal game against Canada at the Sochi 2014 Winter Olympic Games in Russia.