An Ocean on Ganymede

I Read Encyclopedias for Fun

It seems that after I posted about possible life-bearing worlds in our solar system, all these announcements have come out.  Well, now it’s Ganymede’s turn.  Not on my top five list, it may need to be included, though looking at the structure of Ganymede, it’s still a low possibility.

Ganymede_g1_true_2Ganymede is the largest natural satellite in the solar system, even larger than the planet Mercury, but it doesn’t contain as much mass.  The reason is that Mercury has a huge iron core, while Ganymede’s is smaller.  It’s also not common for a moon to have an iron core, and it and Europa are the only two icy moons to be lucky enough.  Ganymede’s molten iron core gives it the distinction of having its own magnetic field, and even aurora.  And it’s just that particular feature that scientists were looking at with the Hubble Space Telescope.  What it enabled them to…

View original post 138 more words

One thought on “An Ocean on Ganymede

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s