What Do Scientists Know?

What the *&%$! DO we know?

Science magazine recently ran a bunch of essays addressing the puzzles still facing scientists

Sciencebase presents the Top 25 with links below.

• What Is the Universe Made Of?
• What is the Biological Basis of Consciousness?
• Why Do Humans Have So Few Genes?
• Can the Laws of Physics Be Unified?
• How Much Can Human Life Span Be Extended?
• What Controls Organ Regeneration?
• How Can a Skin Cell Become a Nerve Cell?
• How Does a Single Somatic Cell Become a Whole Plant?
• How Does Earth's Interior Work?
• To What Extent Are Genetic Variation and Personal Health Linked?
• Are We Alone in the Universe?
• How and Where Did Life on Earth Arise?
• What Determines Species Diversity?
• What Genetic Changes Made Us Uniquely Human?
• How Are Memories Stored and Retrieved?
• How Did Cooperative Behavior Evolve?
• How Will Big Pictures Emerge from a Sea of Biological Data?
• How Far Can We Push Chemical Self-Assembly?
• What Are the Limits of Conventional Computing?
• Can We Selectively Shut Off Immune Responses?
• Do Deeper Principles Underlie Quantum Uncertainty and Nonlocality?
• Is an Effective HIV Vaccine Feasible?
• How Hot Will the Greenhouse World Be?
• What Can Replace Cheap Oil -- and When?
• Will Malthus Continue to Be Wrong?