Google+: Letters of Note - Why Explore Space?

Another Letters of Note post from Daniel's Google+ page. I'm a bit late with posting it this time. Sorry for that. It's because Google+ was down for some time yesterday and I assumed that the post would be up sometime later. Well here it is:

This week's Letters of Note pick is Why Explore Space? Enjoy.

Here's the Link: Why Explore Space?

The Google+ link at this page is Dan's post shared via this site's Google+ page.