Wheels? Check. Gas tank? Check ... We all burdened the sagging leaf springs further with our Pelican cases and duffel bags.

General Motors is recalling nearly 462,000 pickup trucks and big SUVs with diesel engines because the rear wheels can lock up, increasing the risk of a crash.

The wheel was likely invented around 6,000 years ago, but a new analysis of curious rocks from Israel suggests that wheel-like technologies existed even earlier.