WASHINGTON, DC - FEBRUARY 28: (AFP OUT) U.S. Vice President Mike Pence (L) and Speaker of the House Paul Ryan (R) applaud as U.S. President Donald J. Trump (C) delivers his first address to a joint session of the U.S. Congress on February 28, 2017 in the House chamber of the U.S. Capitol in Washington, DC. Trump's first address to Congress is expected to focus on national security, tax and regulatory reform, the economy, and healthcare. (Photo by Jim Lo Scalzo - Pool/Getty Images)
TOPSHOT - Saudi Arabia's King Salman bin Abdul Aziz (centre L) and Indonesia's President Joko Widodo (centre R) walk in heavy rain at the presidential palace in Bogor, West Java on March 1, 2017.
Cheering crowds welcomed King Salman on March 1 as he began the first visit by a Saudi monarch to Indonesia for almost 50 years, seeking stronger economic ties with the world's most populous Muslim-majority country. / AFP / POOL / Achmad Ibrahim (Photo credit should read ACHMAD IBRAHIM/AFP/Getty Images)
BRECON, WALES - MARCH 02: Sheep in the lambing pen on Gwndwnwal Farm during lambing season on March 2, 2017 in Brecon, Wales. Gwndwnwal Farm is a family run livestock farm in Brecon, South East Wales. The Brute Family are expecting to lamb 600 ewes this season producing over 1000 young. The season generally starts late January and runs through until April. These are the first lambs of spring which began, meteorologically, yesterday, 1st March. (Photo by Chris Jackson/Getty Images)
WASHINGTON, DC - FEBRUARY 28: Widow of Fallen Navy Seal, Senior Chief William Owens, Carryn Owens (2ndL), Ivanka Trump and White House Senior Advisor to the President for Strategic Planning Jared Kushner attend a joint session of the U.S. Congress with U.S. President Donald Trump on February 28, 2017 in the House chamber of the U.S. Capitol in Washington, DC. Trump's first address to Congress focused on national security, tax and regulatory reform, the economy, and healthcare. (Photo by Alex Wong/Getty Images)
VATICAN CITY, VATICAN - MARCH 01: Pope Francis leads his general weekly audience in St. Peter's Square at the Vatican on March 1, 2017 in Vatican City, Vatican. (Photo by Alessandra Benedetti - Corbis/Corbis via Getty Images).
WASHINGTON, DC - FEBRUARY 28: U.S. President Donald Trump addresses a joint session of the U.S. Congress on February 28, 2017 in the House chamber of the U.S. Capitol in Washington, DC. Trump's first address to Congress focused on national security, tax and regulatory reform, the economy, and healthcare. (Photo by Win McNamee/Getty Images)
Israeli police forces arrive to evacuate Israeli supporters of settlements on February 28, 2017 in the settlement of Ofra in the occupied West Bank, during an operation by Israeli forces to evict settlers' houses.
Israeli police began removing residents and protesters from nine West Bank settler homes set to be demolished under a Supreme Court ruling. The homes in the Ofra settlement -- a symbol of Jewish settler defiance to international concerns -- were found to have been built on private Palestinian land and ordered razed by March 5.
/ AFP / MENAHEM KAHANA (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)
PHILADELPHIA, PA - FEBRUARY 27: A man photographs Jewish tombstones laying vandalized at Mount Carmel Cemetery February 27, 2017 in Philadelphia, Pennsylvania. Police are investigating 75-100 gravestones that were damaged by vandals yesterday. (Photo by Mark Makela/Getty Images)
WASHINGTON, D.C. - FEBRUARY 28: U.S. Attorney General Jeff Sessions delivers remarks at the Justice Department's 2017 African American History Month Observation at the Department of Justice on February 28, 2017 in Washington, D.C. The event also included a showing of the documentary 'Too Important to Fail: Saving America's Boys.' (Photo by Zach Gibson/Getty Images)
THE OSCARS(r) - The 89th Oscars(r) broadcasts live on Oscar(r) SUNDAY, FEBRUARY 26, 2017, on the ABC Television Network. (Eddy Chen/ABC via Getty Images)
JORDAN HOROWITZ, WARREN BEATTY
ALEPPO, SYRIA - FEBRUARY 25: A girl holds a teddy bear in the Syrian town of Al Bab after the town center has been entirely freed from Daesh terrorists by Free Syrian Army (FSA), backed by Turkish military as a part of the 'Operation Euphrates Shield' in Aleppo, Syria on February 25, 2017. FSA members continue to clean land mines and traps, placed by Daesh terrorists. The Turkish-led Operation Euphrates Shield began on August 24, 2016 to improve security, support coalition forces and eliminate the terror threat along the Turkish border using Free Syrian Army fighters backed by Turkish artillery and jets. (Photo by Emin Sansar/Anadolu Agency/Getty Images)
Bankers laugh while wearing Snapchat glasses on the floor of the New York Stock Exchange (NYSE) as they wait for Snap Inc. will post their IPO in New York, U.S., March 2, 2017. REUTERS/Lucas Jackson TPX IMAGES OF THE DAY
A reveller enters a chemical toilet before the first night of the Carnival parade of samba schools at the Sambadrome in Rio de Janeiro, Brazil, February 26, 2017. REUTERS/Ricardo Moraes TPX IMAGES OF THE DAY
Italy's Mount Etna, Europe's tallest and most active volcano, spews lava as it erupts on the southern island of Sicily, Italy February 28, 2017. Picture taken February 28, 2017. REUTERS/Antonio Parrinello TPX IMAGES OF THE DAY
PERRYVILLE, MO - MARCH 01: Parts of grain silos from the Huber family farm are scattered throughout a field up to a half mile away after yesterday's tornado on March 1, 2017 in Perryville, Missouri. At least one person was killed when the tornado crossed interstate 55. (Photo by Jon Durr/Getty Images)
KRASNOYARSK, RUSSIA - MARCH 1: (RUSSIA OUT) Russian President Vladimir Putin arrives to the meeting on sport development in the region on March 1, 2017 Krasnoyarsk, Russia. Putin is on a one-day visit to the Siberian city of Krasnoyarsk. (Photo by Mikhail Svetlov/Getty Images)
A worker demonstrates the Qualcomm Iris Authentication Solution on the Qualcomm Inc. stand on the third day of Mobile World Congress (MWC) in Barcelona, Spain, on Wednesday, March 1, 2017. A theme this year at the industry's annual get-together, which runs through March 2, is the Internet of Things. Photographer: Chris Ratcliffe/Bloomberg via Getty Images
Counselor to the President Kellyanne Conway (L) checks her phone after taking a photo as US President Donald Trump and leaders of historically black universities and colleges pose for a group photo in the Oval Office of the White House before a meeting with US Vice President Mike Pence February 27, 2017 in Washington, DC. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
WASHINGTON, DC - FEBRUARY 28: Members of congress wear white to honor the women's suffrage movement and support women's rights as U.S. President Donald Trump addresses a joint session of the U.S. Congress on February 28, 2017 in the House chamber of the U.S. Capitol in Washington, DC. Trump's first address to Congress focused on national security, tax and regulatory reform, the economy, and healthcare. (Photo by Alex Wong/Getty Images)
BEVERLY HILLS, CA - FEBRUARY 26: Viola Davis attends the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Anthony Harvey/Getty Images)
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This past week started off with a bang at an Academy Awards that was more newsworthy than usual. Not only did Viola Davis become the first black actor to win the Triple Crown of Acting, but an unprecedented mixup caused the incorrect Best Picture winner to be announced at the end of the show.
In politics, President Trump spoke to a joint session of Congress on Tuesday, during which he addressed the widow of fallen Navy SEAL William "Ryan" Owens. Vice President Mike Pence also held a meeting at the White House for leaders of historically black colleges and universities.
Elsewhere in the world, Italy's most active volcano spewed stunning but dangerous lava once again, many carnivals and celebrations were held in Brazil, and Snap Inc. posted record numbers at the stock exchange.
Click through the slideshow above to see photos from all of these stories and more, and be sure to check back next weekend for our selection of the best photography from the coming days.