Flocks of airborne robots are being developed, able to collaborate and overwhelm enemy defences.

Polish Formula 1 driver Robert Kubica is returning to the sport after a serious accident in 2011 partially severed his arm.

An entrepreneur builds a one-metre-long stretch of motorway to protest about poor road infrastructure.

A selection of the best news photographs from around the world, taken over the past week.

Cosimo Geracitano has painted 45 replicas of masterpieces which cover every wall of his Canada home.

Behind the scenes of a UK hip-hop tour featuring an all-female line-up of musicians, rappers and DJs.

An exclusive look at the last photos of F_MU1, one of the world's rare super-tuskers, before she died.

Kashmiri goats are roaming the streets of Llandudno, holding up traffic and nibbling gardens.

Boeing's top-selling jets grounded until May as investigators work out what caused two fatal crashes.

A study finds the bacteria and viruses in the nose could give clues to improve the diagnosis.

New Zealand PM Jacinda Ardern met with members of the Muslim community in Christchurch

Lewis Hamilton takes pole position at the season-opening Australian Grand Prix, with a big margin to the Ferrari of Sebastian Vettel.

The lives and stories of those killed in the two Christchurch mosque attacks.

Valentino Rossi is 41 and has not won a MotoGP title for 10 years - but that has not stopped fans obsessing over the racing icon.

As New Zealand mourns the victims of Friday's shootings, people share messages of solidarity and hope.

England and Wasps scrum-half Dan Robson faces a spell on the sidelines after suffering with blood clots.

Imane Fadil, a guest at ex-Italian PM Silvio Berlusconi's sex parties, had said she was poisoned.

Dan Walker brings you the action and reaction from an incredible week of football, including Liverpool and Tottenham in the Champions League.

Natalie Sciver just misses out on a century as she helps England thrash hosts Sri Lanka by 154 runs in the first of three ODIs.

Meet Olivia and Kelsey, two Uganda-based social workers behind the #nowhitesaviors social media campaign.

Etienne Capoue gives Watford the lead after Crystal Palace struggle to defend a corner in their FA Cup quarter-final at Vicarage Road.