Fallstreak hole update: How to supercool water, and an experiment you can do at home

Thursday, November 13, 2014, 1:13 PM - Last week, pictures hit the web of a strange rainbow-hued spectacle in the skies southeast of Melbourne, Australia, known as a fallstreak hole, which had a very strange origin - a phenomenon called 'supercooling'.

CHECK IT OUT: Video: Rare, spectacular weather phenomenon - a 'fallstreak hole' - rattles social media

Supercooling is when the temperature of water drops below 0 degrees C, but the water doesn't freeze.

That may seem strange, since that temperature is specifically known as "the freezing point of water", but as SciShow host Michael Aranda demonstrates in the video below, you need more than just cold to turn water into ice.