Travel to Australian from the U.S. or Europe is currently quite a long ordeal, but in the future, a hypersonic "SpaceLiner" could whisk up to 50 passengers from Europe to Australia in just 90 minutes. The futuristic vehicle would accomplish this by riding a rocket into Earth's upper atmosphere, reaching 24 times the speed of sound before gliding back in to make a landing.
Martin Sippel, project coordinator for SpaceLiner at the German Aerospace Center, suggests that the project could make enough progress to begin attracting private funding in another decade, and aim for full operations by 2050.
Currently, the concept includes a rocket booster stage for launch and a separate orbiter stage to carry passengers halfway around the world without ever making it to space. Flying from the U.S. to Europe could take just under an hour if the SpaceLiner is successful.
Unfortunately, the downside to the high speed travel is going to be the cost, which will likely be prohibitive to all but the world's richest people.