Ever spot something on your skin and wonder um, how long has that been there? Before you fall down the rabbit hole of Google, let’s start with step one: identifying what the spot in question actually ...

With a techniques borrowed from earthquake detection, researchers are learning to predict where sunspots will boil-up. That ...

Sunspots — those marks that aren't freckles or moles — are signs you’ve spent your fair share of time soaking up the sun. “Sunspots are your skin’s response to daily exposure to ultraviolet rays,” ...

Why sunspots are able to last so long has been a mystery for millenia, but a new observation technique revealed their secret. The equilibrium between magnetic fields and pressure allows the solar ...

Add Yahoo as a preferred source to see more of our stories on Google. Ever spot something on your skin and wonder um, how long has that been there? Before you fall down the rabbit hole of Google, ...