Naked Scientists Podcast

Naked Scientists episode

Sat, 26th May 2007

Planets and Cosmology

Mars_from_hubble (c) NASA

This week on the Naked Scientists we will be venturing into space on an inter galactic mission to learn more about the biggest galaxies in space and the search for life on other planets.  Running the mission we will have Professor Carolin Crawford (University of Cambridge) who works with gases in galaxies and Dr Maggie Turnbull who looks for Earth-like planets and signs of life in the 'Goldilocks' zones among nearby stars (the Search for Extraterrestrial Intelligence Institute SETI).

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In this edition of Naked Scientists

Full Transcript

  • 16:33 - How can human DNA be separated out from food in your mouth?

    TV crime programmes often show DNA samples taken from suspects by swabbing the inside of their mouth. Human mouths are filled with bacteria, so the swab must collect non-human DNA as well as DNA from our food. How can human DNA be separated out from this?

  • 18:15 - Science Update - Diseases of the Brain

    This week, Chelsea and Bob look at diseases of the brain. Chelsea sniffs out a new way of screening for Alzheimers using nasty smells, while Bob tracks down the genetic basis of schizophrenia...

  • 22:13 - The Shape of the Universe

    Dr Carolin Crawford tell us about how galaxies form, the early days of the universe and the heart of the Milky Way

  • 25:29 - Why are there two sorms of galaxy?

    I understand that there are two types of galaxies. Some have spiral arms and others an elliptical shape. What processes would form those two different types?

  • 31:15 - Measuring the Speed of Light

    Measure the highest speed possible in this universe, just using objects you could find in your kitchen.

  • 41:35 - The Search for Life in Outer Space

    Maggie Turnbull tells us about her shortlist of potentially habitable planets - prime targets for the Search for Extra Terrestrial Intelligence.



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