• The planet 55 Cancri e is nine times as massive as Earth (21 July, p 38).
• The crucifix ground beetle is extinct in many localities but not in the UK as a whole (28 July, p 28).
• Odds off: in the long run, a 50:50 chance of a £6 pay-out should return more than a guaranteed £2.70 per round (21 July, p 10).
