These are together in the evening sky after sunset for the next few days, and worth a look if your skies are clear. Just before 8 pm BST, and similar times elsewhere, Venus becomes visible first. Then Mercury becomes visible to the right, at about a thumb's breadth at arm's length. At first, it easier to see with binoculars, but is bright enough as it sinks to be seen with naked eye. Apparently, only 1% of people have seen it.

Penny