Text completion 2 Read the text and complete the gaps (1-5) with appropriate words from the box in the correct form. One word is extra keep time it Successful person rover The Mars Explorers Since 1996, NASA has been sending explorers to Mars. These explorers are not 1) however - they are robots called 'rovers! The latest rover is Curiosity, which 2) landed on Mars on 6th August, 2012. It is the size of a small car and travels very slowly - just 200 metres a day - on 3) six aluminum wheels. It has got a robotic arm which it uses to examine the soil and rocks on the surface of the planet. The 4) mission is to find evidence that Mars once supported life. Recent discoveries have changed scientists' understanding of Mars. If nothing goes wrong, the rover 5) exploring for about 14 years. In all that time, it's going to make many more discoveries about the Red Planet! on
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