In the plant's control room, Penrice's workers watch crystals form on the outside of a vacuum-drum filter.
ECONOMIST: Petri-dish economies
Turner says it's hard enough for scientists to understand how the supposedly empty vacuum of space can be suffused with some form of cosmic energy.
NPR: New Clue to Universe's Darkest Mystery
If a political vacuum threatens to deteriorate into a resumption of violence, on past form pressure will be put back on Mr Trimble.
ECONOMIST: Where next in Ulster?
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