The Texas Central Railway has a plan to build a high-speed train without any taxpayer dollars.
Spanning the nearly 240 miles separating Dallas and Houston, a Japanese-style "bullet train" reportedly would haul 500 passengers in just 90 minutes. Maximum speed: around 220 mph.
If all goes as planned, the train would be running by 2020, according to organizers.
Drivers? Who needs 'em? We've got computers!
Driverless cars have been legal in California for nearly a year. Carmakers Audi, BMW, Mercedes and Volvo are planning to offer automated vehicles by the end of this year, The New York Times reported.
As more computers take the driver's seat, it remains to be seen how driverless cars will safely interact with cars piloted by humans.
Other car-related transportation ideas are winding their way through the national conversation. How about solar-powered smart-roads? Inventor Scott Brusaw has proposed building a national network of wired highways made of very strong glass. Solar electricity generated by the highways would recharge electric vehicles that use the road. The highway's streetlights and LED warning signs also would be powered by the road.
Justin Bieber's on board. Who else wants to fly to the edge of space?
Bieber has signed on to be among Virgin Galactic's first passengers.
The company -- founded by billionaire Richard Branson -- says it's on track for its passenger spacecraft to reach space in a test flight for the first time by the end of this year.
More than 500 would-be space tourists have signed up to take short $200,000 flights that would involve several minutes of weightlessness.
New Mexico says it's ready for space travel.
The state has built a kind of airport for space ships called Spaceport America.
It's open for business and NASA has already used the facility for unmanned rockets.
Other ideas aimed at going up include a proposal for an elevator that would take cargo and travelers into space.
What about the extreme future of transportation? Believe it or not, scientists have been talking about an idea of getting from here to there that sounds like something from "Star Trek."
Could Scotty's "transporter" ever become a real thing?
In 2007, scientists indicated to CNN that someday it might be possible to scan a person using some advanced form of the technology used to perform MRI scans, and transmit that scanned information somewhere else -- using normal electrical or sound signals -- where it would then be reassembled into an approximation of the original.
But there will always be skeptics, like Valerie Jamieson, physics editor of New Scientist Magazine. "I really don't think it is ever going to happen," she said. "Then again, one thing I've learned is never to underestimate the ingenuity of physicists, so never say never."