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
Feeling humid with heavy showers and thunderstorms moving north overnight into Sunday.
Four people, including three children, were taken to hospital to be checked for smoke inhalation.
Heavy rain and thunderstorms will affect many parts of Wales this weekend - particularly during Saturday evening.