Leaders from Russia, Ukraine, Germany and France reach an agreement on the conflict in eastern Ukraine that includes a ceasefire and withdrawal of heavy weapons. However, several days later, the Ukrainian government and pro-Russian rebels claim that, within its first day, the ceasefire was broken 139 times, as both sides failed to withdraw their heavy weapons and fighting had continued.
February 16 – The Egyptianmilitary begins conducting airstrikes against a branch of the Islamic militant group ISIL in Libya in retaliation for the group's beheading of over a dozen Egyptian Christians.
March 20 – A total solar eclipse was visible in the north Atlantic, Faroe Islands, Svalbard. It was the 61st eclipse of the 120th saros cycle which started on May 27, 933 AD and will end on July 7, 2195, which is 180 years ahead of 2015.
April 4 - A total lunar eclipse was visible in Asia, Australia, Pacific and Americas. It was a shallow total lunar eclipse, with 0.08% of that diameter inside of the Earth's umbral shadow, and it was the 30th eclipse of the 132nd saros cycle, which began with a penumbral lunar eclipse in Earth's penumbral northern edge of the shadow on May 12, 1492 and will conclude with another penumbral lunar eclipse in Earth's penumbral southern edge of the shadow on June 26, 2754.
July 5–13 – Greek government-debt crisis: After six months of clashes and futile negotiations between Greece's newly elected, leftist government and the country's creditors, over the austerity measures imposed through bailout programmes, tension peaks as Greece votes in a referendum to reject the terms offered in a third programme; however the government eventually proceeds to concur to harsher terms than those offered before, in what was widely characterized as a coup on the creditors' part.
September 11 – Queen Elizabeth II, having been on the throne for 63 years, 217 days, became the longest-reigning British monarch in history and the longest-serving head of state of any nation in modern history, surpassing Queen Victoria who had reigned for 63 years, 216 days upon her death on January 22, 1901.
NASA announces that liquid water has been found on Mars.
A total lunar eclipse was visible in Eastern Pacific, Americas, Europe, Africa and western Asia. It was the 26th eclipse of the 137th saros cycle, which began with a penumbral lunar eclipse in Earth's penumbral southern edge of the shadow on December 17, 1564 and will conclude with another penumbral lunar eclipse in Earth's penumbral northern edge of the shadow on April 20, 2953.