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Interstellar Space Travel End of Exams Presentation Group J Saeed Ascroft, Charlotte Nedd, Anna Pearson 11 th June 2013

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Where do we want to go? -Habitable Planets, Charlotte Nedd What is stopping us? -The limitations of the human body, Anna Pearson What does it take? -The Spacecraft of the Future, Saeed Ascroft Talk Overview

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Habitable Planets

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Habitable Planets Why interstellar travel? Hope for a better future Curiosity Revolutionary advancements Social issues; population limits, sustainability, governance etc Long-range thinking on goals before need for solution is here. More career options that benefit humanity.

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Habitable planets Criteria for living. Stars luminosity + T Planets distance Planets mass and radius Planets mass, radius, distance Stars luminosity

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Habitable Planets Criteria for living Planets radius, density, escape velocity, surface T Surface T Relative humidity Planetary Class Habitable Class

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Habitable Planets How far are we talking? Nearest star Proxima Centauri 4.3 light years not a likely host to planets Few possibilities within roughly 10 light years Walking 2.3 billion years Driving 30 million years Fastest spacecraft 100,000 years Don't judge me.

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Habitable Planets Catalog

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Habitable Planets Tau Ceti e Distance 11.9 ly Mass (Earth masses) 5 Radius (Earth radii) 1.9 Surface T (degrees C) 68 ESISPHHZDHZCHZApClasshClasss 0.740.00-0.910.290.25warm superterranthermoplanet

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The Limitations of the Human Body

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Obvious Problems Food Water Waste Lack of Sunlight Pressure Difference - 6.3kPa boiling point of water at body temp

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ionized atoms ranging from a single proton up to an uranium nucleus Outside the shielding of the earths magnetic field this would become a problem Galactic Cosmic Radiation Between the Apollo 16 and 17 missions a solar proton event occurred that produced radiation levels of sufficient energy that the astronauts outside of the Earths magnetosphere would have absorbed lethal doses within 10 hours after the start of the event

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Microgravity Muscle atrophy Loss of proprioception Fluid redistribution leads to moon-face Loss of bone density 1.5% bone tissue lost per month the loss of bone density of 3-4 months in space takes 2- 3 years to regain on earth

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Acceleration

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A Solution?

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The Spacecraft of the Future

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Project Orion

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Rocket performance

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