(285263) 1998 QE2 The asteroid (285263) 1998 QE2, expected to approach within 3.6 million miles of Earth on May 31, is discovered to have its own moon.
Stanford University Stanford University researchers unveil a zinc–air battery that is more energy-dense and cheaper than lithium-ion counterparts.
Woolly mammoth Russian scientists discover a "perfectly preserved" woolly mammoth carcass containing liquid blood.
Seton Hall University Seton Hall University is shut down due to a bomb threat that turns out to be a hoax.
Mold A court in Mold, Wales, finds Mark Bridger guilty of abducting and murdering five-year-old April Jones in October 2012.
United Nations After a three-year trial, a U.N. tribunal in The Hague acquits two former Serbian security officials accused of committing war crimes and crimes against humanity during the 1990s Bosnian War.
Barack Obama U.S. president Barack Obama appoints James Comey, a former member of the Bush administration, as the new director of the FBI.
Polk County, Florida Parents in Polk County in the U.S. state of Florida protest against their children having their irises scanned by authorities without permission by schools. The EyeSwipe-Nano program is temporarily suspended.
Genetically modified wheat Following the controversial discovery of genetically modified wheat on a U.S. farm on May 29, Japan suspends imports of wheat from the U.S.
Maroon 5 Maroon 5 frontman Adam Levine makes an "unpatriotic" comment on television, prompting calls for him to be removed to a "Communist country" or pursued by secretive anti-terrorism hit squads. Levine responds by tweeting dictionary definitions of words such as "joke", "humourless" and "lighthearted" but is later forced to apologise for his indiscretion.
Ibragim Todashev Abdul-Baki Todashev, father of Ibragim Todashev who was killed by the FBI last week, describes U.S. agents as "bandits" who killed his son "execution-style".
Syrian civil war Syrian state television reports that forces loyal to President Bashar al-Assad have killed three westerners including an American woman and a British man fighting for the Opposition.
Doctors in the besieged city of Qusayr request urgent medical aid as they run out of supplies to treat eight-hundred wounded.
An Israeli official says the Israeli government is looking into reports that Syria received a shipment of S-300 missiles.