Cranfield University has begun making seven mirror segments for the for the world's biggest telescope, the European Extremely Large Telescope.
The E-ELT is a 42m diameter ground-based telescope made up of 1,000 hexagonal segments, each 1.4m wide and just 5cm thick. At almost half the length of a soccer pitch in diameter, the E-ELT is four to five times bigger than the largest optical telescopes operating today, and will gather 15 times more light. The…
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