• Unbreakable Voyager space probes close in on a 50 year mission
• DNA firm holding highly sensitive data 'vanishes' without warning
• Somebody moved UK's oldest satellite, and no-one knows who or why
• Archaeologists unearth forgotten city in Arabian desert built by 4,000-year-old advanced 'utopian' society
• 'God of chaos' asteroid could trigger astroquakes when it skims past Earth on Friday the 13th