We've used rubber tires filled with air for so long that it's hard to think about an alternative, but they do exist -- they're just not very popular.

To avoid complication of neglectful car owners, several manufacturers have been developing designs for tires that don’t use air at all. The vast majority of airless designs follow a similar theme.

What is taking so long for airless tires to hit the shelves? It's one thing to run around the lunar surface for a couple of miles and a few hours. Paul Eisenstein: Here on Earth, it is much more ...

The design uses a unique concave sidewall that allows for a flatter, track-like contact with the ground, which manufacturer ...

US Justice Department considers merging DEA, ATF in major shakeup, memo says The U.S. Justice Department is considering merging the lead agencies enforcing drug and gun laws in a major shakeup as ...