Text 1 Risks in Scientific Research

Text 2 Glassmaking in Bronze-Age Egypt

Text 3 Are Humans Still Evolving?

Text 4 Times of Our Lives

Text 5 The Right Time and Place for Making Flowers

Text 6 Suppressing Cancer:The Importance of Being Senescent

Text 7 Close to the Edge:Neutralizing the HIV-1 Envelope

Text 8 Researchers Tie Deadly SARS Virus to Bats

Text 9 The Hunt for a New Drug:Five Views from the Inside

Text 10 The Renaissance of Natural Products as Drug Candidates

Text 11 Making Fuels from Biomass

Text 12 The Man Who Dared to Think Small

Text 13 Plenty of Room,Indeed

Text 14 Small Things and Big Changes in the Developing World

Text 15 Ultrafine Particles

Text 16 Nanotubes for Electronics

Text 17 Spintronics

Text 18 In Praise of Hard Questions

Question A WHAT IS THE UNIVERSE MADE OF?

Question B WHAT IS THE BIOLOGICAL BASIS OF CONSCIOUSNESS?

Question C TO WHAT EXTENT ARE GENETIC VARIATION AND PERSONAL HEALTH LINKED?

Question D WHAT CONTROLS ORGAN REGENERATION?

Question E WHAT GENETIC CHANGES MADE US UNIQUELY HUMAN?

Question F HOW DID COOPERATIVE BEHAVIOR EVOLVE?

Question G WHAT ARE THE LIMITS OF CONVENTIONAL COMPUTING?

Question H IS AN EFFECTIVE HIV VACCINE FEASIBLE?

Question I WHAT CAN REPLACE CHEAP OIL-AND WHEN?

Question J WILL MALTHUS CONTINUE TO BE WRONG?