In May, 2009 European Sapce Agency (ESA) successfully launched two of its most ambitious astronomy missions to unveil the sercrets of the darkest, coldest and oldest parts of the universe. Name the two most complex science satellites ever built in Europe

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Q: 119 (CDS-II/2009)
In May, 2009 European Sapce Agency (ESA) successfully launched two of its most ambitious astronomy missions to unveil the sercrets of the darkest, coldest and oldest parts of the universe. Name the two most complex science satellites ever built in Europe used in this mission.

question_subject: 

Current Affairs

question_exam: 

CDS-II

stats: 

0,2,9,6,2,0,3

keywords: 

{'complex science satellites': [0, 0, 1, 0], 'ambitious astronomy missions': [0, 0, 1, 0], 'european sapce agency': [0, 0, 1, 0], 'esa': [0, 0, 1, 3], 'europe': [10, 4, 7, 13], 'mission': [1, 0, 2, 5], 'sercrets': [0, 0, 1, 0], 'goce': [0, 0, 1, 0], 'universe': [0, 0, 0, 1], 'herschel': [0, 0, 1, 0], 'oldest parts': [0, 0, 1, 0]}

The correct answer is option 2: GOCE and Proba-1. The question asks for the names of the two most complex science satellites ever built in Europe used in the mentioned mission. Let`s dissect each option to better understand why option 2 is correct.

Option 1: RES-2 and ERS-Envisat. These satellites were indeed launched by the European Space Agency (ESA), but they were not the most complex science satellites used in the specific mission mentioned in the question.

Option 2: GOCE and Proba-1. These satellites were indeed launched by ESA in May 2009 for the mission mentioned in the question. The Gravity field and steady-state Ocean Circulation Explorer (GOCE) was designed to map the Earth`s gravity field, while Proba-1 was a technology demonstrator that carried a wide range of scientific instruments.

Option 3: Herschel and Planck. These satellites were launched by ESA in May 2009 as well, but they were not the most complex science satellites used in the specific mission mentioned in the question. Herschel was a space observatory designed to observe the universe in the infrared, and Planck was a space observatory designed to study the cosmic microwave background radiation.

Option

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