X-rays reveal a design issue in fitting the battery into the enclosure, as the unfolding disaster threatens Samsung's share price and profits.

Our weekly news round-up: Adobe's Rigel project - a free mobile app with real Photoshop functionality and integration with the desktop; Fighting killer bugs with devils' milk; ExoMars orbiter and lander arrive at Mars; Exodus from Yahoo's online email service; Algorithm to replace contraceptive pill; Coen Brothers' write flick about dark web and Silk Road; Julian Assange's internet cut off.

X-rays reveal a design issue in fitting the battery into the enclosure, as the unfolding disaster threatens Samsung's share price and profits.

Our weekly news round-up: Adobe's Rigel project - a free mobile app with real Photoshop functionality and integration with the desktop; Fighting killer bugs with devils' milk; ExoMars orbiter and lander arrive at Mars; Exodus from Yahoo's online email service; Algorithm to replace contraceptive pill; Coen Brothers' write flick about dark web and Silk Road; Julian Assange's internet cut off.

X-rays reveal a design issue in fitting the battery into the enclosure, as the unfolding disaster threatens Samsung's share price and profits.

We review the UK's popular Babylon app. It can produce a faster and more accurate diagnosis than a conventional medical consultation. It's proved useful in Rwanda, where there are plenty of smart phones but not enough doctors.

Changes in the strength and timing of a wifi signal can reveal the movement of people within a building and even monitor speech by lip reading.

We review the UK's popular Babylon app. It can produce a faster and more accurate diagnosis than a conventional medical consultation. It's proved useful in Rwanda, where there are plenty of smart phones but not enough doctors.

Changes in the strength and timing of a wifi signal can reveal the movement of people within a building and even monitor speech by lip reading.

We review the UK's popular Babylon app. It can produce a faster and more accurate diagnosis than a conventional medical consultation. It's proved useful in Rwanda, where there are plenty of smart phones but not enough doctors.