For those of us living in the Northern Hemisphere, there are few more daunting flights than traveling Down Under. I've done it, so I can speak with experience.
It's a monster flight — heck, just getting to the biggest part of the flight can involve a long-haul trip. And when you finally get there, you want to spend the first night in this beautiful new country just sleeping.
There's a push to make that a thing of the past, however, and it involves hypersonic travel.