Scientists have discovered a large helium gas field in Tanzania. With world supplies running out, the find is a "game-changer", say geologists at Durham and Oxford universities. Helium is used in hospitals in MRI scanners as well as in spacecraft, telescopes and radiation monitors.
A gun and bomb attack on Istanbul's Ataturk airport has killed 41 people and injured more than 230. Tuesday's attack looked like a major co-ordinated assault, says the BBC's Mark Lowen. "All the signs point towards IS being the culprits," writes BBC security expert Frank Gardner. "IS is targeting Turkey because it sees its government as being un-Islamic and too close to its Western allies in Nato. IS is also feeling the pressure as the Turkish authorities move to close down its networks inside Turkey."
The damaged flight data recorder from the EgyptAir plane that crashed last month has been successfully repaired in France, Egyptian investigators say. read more
The Italian actor and film maker Bud Spencer has died at the age of 86 in Rome. Starring in a series of comedies and spaghetti westerns in the 1960 and 70s, Spencer became a household name. read more
A Chinese container ship has become the first vessel to sail into the newly expanded Panama Canal. Thousands gathered as the ship, called Cosco Shipping Panama, entered from the Atlantic en route to the Pacific. Construction on the new lane for the canal, which runs for 48 miles, began in 2007 and was due to finish in 2014. But strikes and disputes over costs delayed the $5.2 billion project. read more