By BBC World Service
Published February 11, 2020 3:00pm
Scientists at Nasa’s Jet Propulsion Laboratory have been working flat out over the last week repairing Voyager 2. The spacecraft is about 18 billion kilometres from Earth, so sending a command to it takes 17 hours.
Alexa: save my life pleaseCould personal assistants like Alexa and Siri save your life? Research in the journal BMJ innovations has assessed how good the top four voice assistants are at giving sound medical advice – the results were mixed.
Drones mesh it up in VietnamManaging a natural disaster like a flood is so difficult because often there are many unkn...