Did you know? We've had humans in space now continuously for fourteen years, ever since November 2000, when the International Space Stations was first occupied. The Atlantic has a great article about how this came to pass.
Just about every American ninth-grader has never lived a moment without astronauts soaring overhead, living in space. But chances are, most ninth-graders don’t know the name of a single active astronaut—many don’t even know that Americans are up there. We've got a permanent space colony, inaugurated a year before the setting of the iconic movie 2001: A Space Odyssey. It’s a stunning achievement, and it’s completely ignored.
The article includes some great pictures of the ISS:
The ISS costs as much to run as a carrier battle group. In the long run, it's a most worthwhile investment. In 200 years, who will care about a carrier battle group (or even know what they were?) But space stations might be our lifeline to the universe.