Live HD View from Space of Earth

As astronauts who've spent time aboard the International Space Station have noted, there is nothing more beautiful than watching 16 sunrises a day.

Now you can see them all from your desk, thanks to four HD cameras NASA has installed aboard the ISS — and Ustream, which is transmitting the results live, and for free, to the whole Internet.

The view is such stunning high quality, it's hard to believe this is just an experiment. Another hard-to-believe fact: These cameras were constructed and are maintained with the help of high school kids across the U.S.