Our weekly news round-up: NASA legend John Young - Gemini, Apollo and Space Shuttle astronaut - has died aged 87; After delays, Space X's giant Falcon Heavy rocket is set for launch in early February; US Army develops school shooting simulator to aid survival for teachers and students; Italian clothing designers defeat Apple lawsuit, gain right to use brand name Steve Jobs for clothing and electronics products; Nigerian prince con artist arrested in New Orleans; Bitcoin has a volatile month as interest grows in alternative digital currencies like Ethereum and Ripple.

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