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    24 Big Questions Science Still Needs To Answer

    Will we ever have jetpacks?

    To celebrate the launch of its new publication Mosaic the Wellcome Trust asked leading scientists, journalists and thinkers what they thought was the biggest question remaining in science. These are what they came up with.

    1. How does the brain generate consciousness?

    2. What are the limits of human life and physiology?

    3. Can we replace damaged brain parts with computational devices?

    4. What happens when you die?

    5. What are the cures for the world's biggest health problems, like cancer, heart disease and dementia?

    6. Will we ever reconcile the nature versus nurture debate?

    7. Is ageing inevitable?

    8. Will we ever be able to predict the future of economic, political and other social systems?

    9. What is life?

    Roger Highfield, author, museum executive and science journalist.

    We know what distinguishes living things from inorganic matter, but scientists may never know where life actually comes from and how it began.

    10. How can we put evidence into practice perfectly, in medicine: harnessing all the data we have on our patients, and meshing it with all the research data, for the best care?

    11. Is there a limit to how smart individuals and communities can be?

    12. What are the possibilities for lab-grown fish and could this provide a counter to our overexploitation of the oceans?

    13. What makes us "human", and will we ever find out?

    14. Is biology as universal as chemistry and physics?

    15. How are bodies able to repair themselves?

    16. How does the genome allow a brain to develop that has inborn talents and tendencies – if we have an inborn fear of say, snakes, how does that get wired up in a brain?

    17. Why have humans evolved music?

    18. Are we alone? Is there life in space, and if so, how is it similar or different than life here on Earth?

    19. Does the universe have purpose and meaning?

    20. How does the brain work and can we fix it when it goes wrong?

    21. Is suspended animation possible for humans?

    22. Can we look forward to sustainably supporting a stable human population on this planet, and how can we protect biodiversity at the same time?

    23. Is sexuality genetic?

    24. What question has not yet been formulated by anyone?

    You can vote for which you think is most important until Friday 21 March.