Nature highlights

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

• Bose-Einstein condensation: Breaking up a superfluid
  
• Ageing: Two-edged sword
• Quasars: In a twinkling
• Cosmology: Bang on
• Nanotechnology: Good turn
• Post-translational assembly: HIV capsid
• E. coli: Chemotactic tactics
• The fossil record: Speed kills
• Human behaviour: Bare-faced lies

3 January 2002 table of contents