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Sarah Griffiths

Facebook targets under 21s with its Snapchat-style Lifestage app

Jellyfish skin inspires new encrypted messaging materials

Nasa hopes to put the ISS in private hands in the mid 2020s

Soft wriggling caterpillar robot is controlled by light

Uber's driverless taxis will be on the streets this month

CrimeRadar is using machine learning to predict crime in Rio

289 Islamophobic tweets were sent every hour in July

Nasa mission to grab a piece of asteroid will blast off next month

Nasa launches $1m competition to create robots for Mars

World’s largest offshore wind farm gets green light from UK government

Audis will be able to talk to traffic lights from next year

Virtual reality training can stop the elderly from taking a tumble

You can now play Minecraft on the Oculus Rift

Russia may cut the number of cosmonauts on the ISS

The brain has a ‘generosity centre,’ scientists say

Black holes created in a lab ‘prove’ radiation does escape from the astronomical objects

Sushi-making robot creates artful snack using motorised arms – and even adds wasabi

Instagram launches business tools to help users buy and sell