Summer holidays: Testing, quarantine and 'vacci-cations'

Australia’s Phillip Island is home to the largest colony of little penguins on the planet. Ten of the birds were fitted with trackers measuring GPS, water temperature and the depth the penguins are feeding at during the breeding season. BBC Click finds out more. See more at Click’s website and @BBCClick

Gunfire rang out at Kabul as the Taliban celebrated the last US troops leaving Afghanistan. BBC News chief international correspondent Lyse Doucet says the skies were full of red tracer and machine gun fire as the Taliban hailed the US departure, nearly 20 years since the US-led invasion forced them from power.

The state of South Australia is home to half of all the wine produced in the country, but the state is also very dry and changing climate conditions and water shortages mean optimising water use is essential. The University of Adelaide is developing water sensors, thermal imaging and rovers with artificial intelligence to help winegrowers…

With a wide range of shapes, sizes and colours, finding the right pair of glasses can take time. But this means companies may also have to overstock to provide the wide selection of products customers expect. So could face scanning combined with 3D-printing change how we buy glasses and help move towards a more sustainable…

A meeting between UK and Ukrainian officials has been held at the Ministry of Defence to discuss the growing crisis over Russian troop movements near Ukraine’s border. Ukraine’s ambassador to the UK, Vadym Prystaiko, said it was part of a regular dialogue between UK and Ukraine but today’s meeting had been very much influenced by…

Four Iranian intelligence officials have been charged with plotting to kidnap a New York-based journalist critical of Iran, US prosecutors have said. While the indictment did not name the target, Masih Alinejad, an Iranian-American author and activist, has said it was her. She told BBC World News about learning she was a target for kidnapping…