article_snippet.sent: The goal is to eventually map 12.5 per cent over five years.
article_snippet.sent: Each time a new catalogue is made it takes about as much computing power as running 500 ordinary desktop computers for two weeks. '
article_snippet.sent: DES will document over DES five-year mission.
highlights_snippet.sent: The goal is to eventually map 12.5 per cent over five years .
  