Survival in a Galactic Wilderness: invisible boundaries by Chris Martin and Pamela Whiffen

1

Survival in a Galactic Wilderness:invisible boundariesbyChris MartinandPamela Whiffen

2

•Brainstorm – Draw what protects life on earth

•Give out survivor cards

•Atmosphere – Rocket balloon activity

4

Atmospheric Density 1 moles/ literIonosphere no *Magnetic field strength 0.3 gaussOzone Layer yesSolar wind velocity 350 Km/s

Planet Gamma

Death from X-ray and gamma rays

Atmospheric Density 1 moles/ literIonosphere yesMagnetic field strength 0.3 gaussOzone Layer no *Solar wind velocity 350 Km/s

Planet Beta

Death by UV

Atmospheric Density 0.002 moles/ liter *Ionosphere yesMagnetic field strength 0.3 gaussOzone Layer yesSolar wind velocity 350 Km/s

Planet Epsilon

Death by high energy solar particles

•Mapping Magnetic Fields Activity

The sun burps coronal mass ejections

• http://www.youtube.com/watch?v=HTPrwgP8oFY

Check Space weather• http://sohowww.nascom.nasa.gov/

data/realtime-images.html

Without magnetic field• Magnetic field reversal – compares

earth with mars

Atmospheric Density 1 moles/ literIonosphere yesMagnetic field strength 0.02 gauss *Ozone Layer yesSolar wind velocity 350 Km/s

Planet Delta

Death by solar wind charged particles etc.

•Heliosphere videohttp://www.youtube.com/watch?

v=rdNDIz1W6f0

Atmospheric Density 1 moles/ literIonosphere yesMagnetic field strength 0.3 gaussOzone Layer yesSolar wind velocity 20 Km/s *

Planet Zeta

Collapse of heliosphere,death by galactic cosmic rays

Atmospheric Density 1 moles/ literIonosphere yesMagnetic field strength 0.3 gaussOzone Layer yesSolar wind velocity 350 Km/s

Planet Alpha

Death by gamma ray burst, super nova or impact with asteroid… or moose atomic war!

Atmospheric Density 1 moles/ literIonosphere yesMagnetic field strength 0.3 gaussOzone Layer yesSolar wind velocity 300 Km/s

Planet Earth

NASA Missions protecting usAIM, IBEX, THEMIS, Soho

EvaluationProvide materialsindow

1717