What is this lady looking at? If your answer is “herself in the mirror,” you are among the majority, but you are wrong. This is an optical trick used from medieval painters to modern directors. It’s ...

Throughout centuries of European art history, the goddess of love has been painted in repose alongside her mirror, casting her eyes upon her own reflection, it seems, and taking in her own loveliness.

Planetary scientists on both sides of the Atlantic have tracked down a rare molecule in the atmospheres of both Mars and Venus. The molecule, an exotic form of carbon dioxide, could affect the way the ...