'NASA boffins report that an unknown object approaching the Earth from deep space is almost certainly artificial in origin rather than being an asteroid.

Object 2010 KQ was detected by the Catalina Sky Survey in Arizona earlier this month, and subsequently tracked by NASA's asteroid-watching service, the Near-Earth Object Program headquartered at the Jet Propulsion Laboratory in California.'

Read: Approaching Space Object 'Artificial, Not Asteroid' says NASA