NASA orbiter completes 60,000 trips around Mars in 13 years

NASA has revealed its Mars Reconnaissance Orbiter (MRO) has completed 60,000 trips around Mars, 13 years after entering its orbit. Launched in 2005, MRO takes 112 minutes to complete one trip at a speed of about 3.4 kilometres per second. The $720-million spacecraft helped find water ice and flowing salty water besides finding a landing spot for the Curiosity rover.