- 50 Years AgoReaders get an update on the Red Planet's atmosphere and how new probes land there with parachutes.
- Reviews & PreviewsIn about 300 pages, this book sums up the history of all that matters — or at least everything made of matter — from the Big Bang to life on Earth.
- Science StatsA study of tobacco smoking patterns reports that more men than women smoke in every country except Sweden.
- Mystery SolvedFor young banded mongoose moms, there’s only one choice for when to give birth — the same day as older, dominant mothers. In communities of these cat-sized animals, all females give birth together, no matter when they became pregnant.
- Letters to the EditorReaders respond to microbe counts, engineered organs and how to map the universe.
- Editor's NoteWine, DNA, our understanding of the universe: It's all changing, whether we are ready for it or not.