1) Using the search engine of your choice, find the atmospheric composition and density for both Io and Titan.

Io:

Europa:

Titan:

2) Using the search engine of your choice, find the following parameters for the Galilean moon Io:

Surface temperature:

Surface composition:

3) Using the search engine of your choice, find the following parameters for the Galilean moon Europa:

Thickness of surface ice:

Composition of surface ice:

Composition of liquid ocean beneath surface ice:

4) From the following URLs define cryovolcanism and hydrothermal venting. If you are not familiar with these terms, look up their definition first.

https://astrobites.org/2017/04/20/active-cryovolcanism-on-europa/ (Links to an external site.)

https://www.astrobio.net/alien-life/shallow-biospheres-exist-beneath-icy-ceilings-ocean-moons/ (Links to an external site.)

5) Using the search engine of your choice, find the following parameters for Saturn’s moon Titan:

Surface temperature:

Surface composition:

6) Of the five satellites discussed here, which one(s) do you think have a good probability for life? Which ones do you think can sustain life? Which ones do you think cannot sustain life?

Briefly justify your answers.

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