Fill in the gaps with the words derived from the words given

NASA's Mars rover "Curiosity" is a vehicle which has been sent to Mars and is still there. The main aim is to collect data and transfer it to the Earth for further analysis and [ ].

There have been attempts of [ ] such vehicles since the 1970s, but [ ], the first projects were [ ]. "Curiosity" is the first successful project. [ ], it happened because of the level of modern technology and science. All the various [ ]of research Mars Science Laboratory (MSL) has allow "Curiosity" to carry out the mission almost ideally.

The launch of MSL was provided by 410 people: 250 [ ] and about 160 engineers.