Of the six billion emoji that are sent globally every day, around 70% are emotion based – for example, smiley face, love hearts. A smaller proportion of the emoji sent are sad expressions.

Early risers will be able to catch a celestial "smiley face" in the eastern predawn sky Friday morning, as Venus and Saturn ...

in the new Season 10 episode called "Smile," Doctor Who is about to perform that same trick with that most simple, harmless, ordinary facet of 21st century life: emoji. If you watch it -- and you ...

Over time, emoji meanings have become subjective, depending on a message's context and wider cultural trends. Which shaking smiley face should you use? Is there a difference between each ...