A sequence of letters belonging to an ancient alphabet has been discovered in a most unusual way — by someone scrolling through social media. The inscription, on a slate slab unearthed in Spain, is ...

The coolest letter in the alphabet: When we learn the letters of the English alphabet, we just remember them in order, from A to Z. But have you ever thought about whether some letters are just ...

We list, without thinking, the four base types that make up DNA as adenine, guanine, cytosine and thymine. But why are there four? This question is now all the more relevant as organic chemists have ...