Environmental issues in the United States Environmental Protection Agency Acting Administrator Andrew R. Wheeler announces coal-burning power plants may dispose of fly ash in unlined ponds for another 18 months beyond a previously-set April 2019 deadline. Testing standards for hazardous elements in adjacent waters are also weakened. While the move would theoretically save an estimated $28-31 million annually in regulatory costs, there are concerns drinking water could be affected.
Discoveries of exoplanets Astronomers discover a giant gaseous planet orbiting a pair of brown dwarfs.
Nuclear program of Iran Iran starts work at a factory that can produce rotors for up to 60 centrifuges a day.
Cal 3 The Supreme Court of California blocks Tim Draper's proposition to break California into three states, stating that "significant questions have been raised regarding the proposition's validity".
Terrorism in the United Kingdom The leader of the banned British far-right designated terrorist group National Action, Christopher Lythgoe, is jailed for eight years for being a member.
Naa'imur Zakariyah Rahman, 20, is convicted of terror offences after attempting to kill guards, attack Theresa May, and blow himself up on Downing Street using fake explosives provided to him in a sting operation.
Eritrea–Ethiopia relations International air travel resumes between Eritrea and Ethiopia for the first time since 1998.
European migrant crisis A migrant boat capsizes off the northern coast of Cyprus, killing at least 19 people, while 25 are reported missing, and the Turkish coast guard rescues 103.
EU's competition law The European Commission fines Google €4.34 billion for breaching EU antitrust regulations, claiming that Google abused the dominant position of Android to promote their search product. Google announces it will appeal the ruling.
South Korea A joint-team of South Korean, British, and Canadian explorers announce the discovery of the wreck of Russian cruiser "Dmitrii Donskoi", off the coast of Ulleungdo island. "Dmitrii Donskoi" was scuttled in 1905 during the Russo-Japanese War.
Syrian civil war The evacuations of Shia towns Al-Fu'ah and Kafriya in the northern Idlib Governorate begin, as part of a deal between rebel forces and the Syrian government.