- The invisible rivers in our sky — 18 miles worth — that affect the rollercoaster of climate. By Christopher Dewdney.
- Tracking a Soviet cosmic star's latest trajectory — including some details that didn't get past the censor. By Herbert Wright.
- In Volume II of the series, Merlyn Driver takes us for a night-time walk on the Orkney Islands of Scotland.
- The Limits of Knowledge: a journey to explain the mysteries of earth and beyond.