Social media use in politics Facebook suspends a chatbot on Israeli Prime Minister Benjamin Netanyahu's official page for violating its hate speech policy. Netanyahu says the mistake was made by a volunteer employee.
Twitter suspends several Cuban government and state media accounts, including First Secretary of the Communist Party of Cuba Raúl Castro and his daughter Mariela Castro. The pro-government Union of Journalists of Cuba denounces the suspensions as "massive censorship".
C/2019 Q4 (Borisov) C-2019 Q4 (Borisov), a second interstellar comet after ʻOumuamua in 2017, is discovered by an amateur astronomer.
2020 U.S. Democratic Party presidential debates and forums The third major Democratic Party televised debate takes place at the Health and Physical Education Arena in Houston, Texas, with a focus on health care in the United States.
Tonga Tongan Prime Minister ʻAkilisi Pōhiva, age 78, dies one day after being taken to a New Zealand hospital from his native country.
Death of Sahar Khodayari Iran's judiciary issues a warrant to arrest actress Saba Kamali after she posted a text in her Instagram sympathizing with Sahar Khodayari, which was reported to be found "insulting" to the third Shiite Imam, Hussain ibn Ali.
National Assembly The French National Assembly says its president, Richard Ferrand, is put under formal investigation in a "financial impropriety" case. Ferrand stepped down as a minister in President Emmanuel Macron's government in 2017 over the case related to property deals, eight years ago, by a health insurance fund he managed in Brittany. Prosecutors in Lille say he is charged with a conflict of interest.
Democratic Republic of the Congo A train derails in the Democratic Republic of the Congo's Tanganyika Province, killing about 15 people and injuring many others.
European Central Bank The European Central Bank announces new monetary stimulus, with a second round of quantitative easing "for as long as it deems necessary" and lowering its already-negative main deposit rate.
PKK Seven civilians are killed and ten are injured in a roadside attack by the PKK in Kulp, Diyarbakir Province, Turkey.