NASA has paid tribute to the "pioneering legacy'" of mathematician and "American hero" Katherine Johnson - whose work helped put humans on the moon.
A daredevil inventor known as "Mad" Mike Hughes has died after launching himself in a homemade rocket which crashed in the California desert.
Twitter has suspended around 70 accounts for attempting to manipulate the platform in support of Democratic presidential candidate Mike Bloomberg.
Celebrities and supporters of Julian Assange protested in Parliament Square on Saturday ahead of court hearings over his extradition to the United States.
UK politicians could face having bright red and orange badges added beneath their tweets if they post lies and misinformation.