We all learned about conjunctions in grade school, a memory likely filed away with other early school memories, such as how to do long division and reciting multiplication tables through the number 12 ...

You use the word “and” every day, hundreds, perhaps thousands of times. But have you really mastered this most ubiquitous of conjunctions? Turns out, there’s more to using “and” than you may realize.

On Dec. 21, after drawing visibly closer and closer in the night sky over the past few months, Jupiter and Saturn will appear the closest they have since March 4, 1226, nearly 800 years ago. They were ...