A COVID-fighting robot

A decade on, the world has largely forgotten about the Chibok girls, who were kidnapped by Nigeria's Boko Haram Islamist militants. But for victims and their families, like Solomon Maina, who is still waiting for news about his daughter, the tragedy is ongoing.

Scientists are testing a quadrupedal robot, named Spirit, in the rugged terrain of Oregon's Mount Hood, simulating the extreme conditions of the Moon and Mars.

Engineers at Columbia University's Creative Machines Lab have developed Emo – a robot capable of mimicking human facial expressions – to “enhance the interactions between humans and robots.” Emma Jehle has more.