Nature highlights
Key research and analysis from this week's Nature magazine.
Breaking the ice- Hard news on X-ray lasers
- An organized brain
- Galaxies, on the hole
- Fuel cells: iron is the new platinum
- Palaeoclimate: tracking the trend
- Climate: no short sharp shock
- Forest ants: take the flight back
- Open-source gene transfer
- Amino acids: winners and losers
- Stem cell therapy: take heart
