The term is believed to have first appeared on a digital forum in 2005, and refers to a fear of clusters of small holes or ...

An curved arrow pointing right. For many people the sight of holes can bring on a physical reaction. Trypophobia is believed to have evolutionary origins. Produced by Kevin Reilly. Original ...

The fear of the unknown is powerful. Dark matter, for example, is invisible to us, yet we can observe its effects, such as the formation of galaxy clusters. Similarly, black holes have such a ...