some additions to the list
In case no one mentioned him, I'm very thankful for Bigelow Aeorspace. He saved transhab and turned it into a near term reality! Go Bigs!
Go China to. It's inevitable that they will get out in space in a big way. The positive thing to be thankful for then is that they will force us to stop spinning in circles and get out there to.
I'm thankful for ALL of our spacecraft OUT THERE right now.
I'm thankful for the new direction we have set for ourselves as a nation. I'm thankful to again have real hope that I live long enough to see humans land on Mars.