Engineers at Glyndwr University St. Asaph are working on the world's largest telescope, which aims to help mankind see to within a millisecond of the 'Big Bang'.
A team of 15 engineers are polishing seven prototype mirrors using advanced technology.
More top news
Bo Gilbert is still turning heads at a hundred - and she's just made the pages of Vogue.
There are hundreds of thousands of jobs at risk if the UK's steel industry collapses, Excalibur's CEO Stuart Wilkie has told ITV News.
They're being given a hands-on opportunity to unearth Pembrokeshire's history at an archaeological dig near Llangwm.