Earliest known life forms University of California, Los Angeles, and University of Wisconsin–Madison researchers report, in the "Proceedings of the National Academy of Sciences", that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and the earliest direct evidence of life on Earth.
Politics of the United States President of the United States Donald Trump presents a new National Security Strategy document that labels China and Russia as the primary threats to U.S. economic dominance.
Politics of South Africa Cyril Ramaphosa becomes president of the African National Congress (ANC), defeating Nkosazana Dlamini-Zuma by 2,440 votes to 2,261.
Austrian legislative election, 2017 Sebastian Kurz becomes the new Chancellor of Austria and a new government is inaugurated.
Unite the Right rally Charlottesville Police Chief Alfred Thomas announces his retirement. He was previously criticized for his poor handling of the rally and counterprotests.
Weinstein effect The show will discontinue its radio broadcasts on January 1, 2018 but will continue on satellite and its website.
U.S. radio preacher Brother Stair (host of "The Overcomer Ministry") is arrested on seven charges of sexual assault and one county of burglary.
United States–North Korea relations The United States and the United Kingdom claim North Korea is directly responsible for the WannaCry ransomware attack which occurred earlier this year.
Recognize Jerusalem as Israel's capital The United States vetoes a United Nations Security Council resolution calling for it to withdraw its declaration of a capital in Jerusalem, which was approved by the other 14 members.
MiG-29 A Polish MiG-29 crash lands in a forest near Mińsk Mazowiecki. The pilot survived despite not ejecting.
2017 Washington train derailment At least three people are killed and 77 injured when an Amtrak passenger train derails on an Interstate 5 overpass in Pierce County, Washington. This train is part of a new "Cascades" service from Tacoma that launched the same morning.
Texas Rangers Texas Rangers baseball pitcher Cole Hamels and his wife Heidi donate their mansion and 100 acres of land in southwestern Missouri, valued at nearly $10 million, to Camp Barnabas, a charity with camps in the Missouri Ozarks for children with special needs and chronic illnesses along with their siblings.
X Twitter suspends the accounts of well-known white nationalists per recently implemented new offensive content rules.