Arab Spring: The Egyptian revolution began with protests on the "Day of Anger", eventually leading to the removal of President Hosni Mubarak after nearly 30 years of rule.
Ethiopian Airlines Flight 409, en route to Addis Ababa, crashed into the Mediterranean Sea shortly after takeoff from Beirut, Lebanon, killing all 90 people on board.
Three independent observing campaigns announced the discovery of OGLE-2005-BLG-390Lb, a super-Earth 21,500 ± 3,300 light-years away from Earth near the center of the Milky Way.
Avianca Flight 52 ran out of fuel on approach to John F. Kennedy International Airport and crashed into the village of Cove Neck, New York, resulting in the deaths of 73 people.