After a number of false starts and launch delays, NASA has finally released HD footage of its flying saucer's inaugural test flight over Hawaii. The flying saucer, or Low-Density Supersonic Decelerator (LDSD) to give its full name, is one of the possible technologies that NASA is investigating for safely landing large spacecraft on the surface of Mars and other planets in the not-so-distant future. Unsurprisingly the first test of the flying saucer didn't quite go to plan -- but overall NASA is very pleased with the results.