After years of planning and weeks of hard work on the frozen *Antarctic Lake Vida, hooman scientists finally drill through the ice, letting the brilliant sunlight touch the surface of the lake, for the first time in eons...
... much to the shock of the Mini-bacterial Family, that had been living in isolation and darkness**.
*Real hoomans doing some drilling in Lake Vida and finding incredible tiny bacteria living at -13 Celsius (that's 8.6 Fahrenheit!) http://www.rdmag.com/news/2012/11/scientists-find-ancient-microbes-ice-sealed-antarctic-lake
**Course then the bacteria would have lost any light-sensing capabilities but this is a dramatization. Work with me.