Venice, Florence, Rome are all struggling to cope with selfie-stick sightseers, but turnstiles at city gates will worsen the problem

Using data from NASA’s Kepler space telescope, citizen scientists have discovered a planet roughly twice the size of Earth located within its star’s habitable zone, the range of orbital distances where liquid water may exist on the planet’s surface. The new world, known as K2-288Bb, could be rocky or could be a gas-rich planet similar to Neptune. Its size is rare among exoplanets – planets beyond our solar system.

Government hopes 18-year Copenhagen scheme will attract hundreds of companies

More than $7B of fuel stolen in the last 2 years by violent criminal gangs

Sumire Nakamura is the product of a special programme to promote the ancient pursuit and compete with Korean and Chinese players

President Ali Bongo has been recovering from a stroke in Morocco

US President Donald Trump has said that a location for another summit with North Korea is being negotiated.

Germany’s cybersecurity authority has defended its handling of a mass data attack on hundreds of politicians, after criticism it did not tell the police about the breach for weeks.

China’s population will peak in 2029 at 1.44 billion before beginning a period of “unstoppable” decline, a government report says.

Russia has dismissed suggestions that a former US marine accused of spying could be involved in a prisoner swap.