Nature highlights

Key research and analysis from this week's Nature magazine.

• From head to tail
• Scientific wealth of nations
• Every breath you eat
• Asteroids fast-tracked to Earth
• Quiet glows the Sun
• Microscopy: Force for change
• Insect pests: To the woods
• Stem cells: Changing fates
• As copy: The origins of DNA

15 July 2004 table of contents