Bob King is back from his flight in search of the annular eclipse, and not only did he get spectacular pictures, he's written a whole article about it.
Find out about the flight and the eclipse in his article, "Chasing the Sun at 39,000 Feet," in Sky & Telescope magazine.
Another viewing/photo opportunity is much closer to home and you don't even need any special gear. Just head out to an unobstructed view of the northern horizon about 10pm and look up into the mesosphere (about 50 miles up) and you may see the pale blue of noctilucent clouds.