2. Hypersonic Technology Vehicle 2 13,000mph
Photo: worldlifestyle
This is another bit of technology that is still in the development stages, but what it’s done already is something straight out of a science fiction movie. It’s called the Hypersonic Technology Vehicle 2 or HTV-2 and has also been referred to as X-41. The HTV-2 is also an unmanned aircraft that requires a boost for lack of better words in order to get it going. But once it gets going, it’s capable of reaching speeds upwards of Mach 20 or roughly 13,000mph.