New analysis shows that the Chandler Wobble in Earth's axis changed phase by 180 degrees in 2005. The question is why.
The first full-scale test of the booster for NASA's Ares I rocket was called off because of a power failure.
It's time to drop miles-per-gallon ratings, or any other one-size-fits-all fuel economy measurement for vehicles.
Electrons in a conductor seem to behave differently under gravitational and inertial accelerations, threatening to tear down one of the cornerstones of modern physics.
Atom interferometers now have the sensitivity to spot new forces beyond the standard model of particle physics.
A Nobel Prize-winning physicist has developed a model of the universe as a cellular automaton that allows entanglement to be deterministic.
For the first time, the country has launched a vehicle carrying a satellite, but it failed to reach its intended orbit.
Attacks that send database commands to the servers hosting a Web site have become a common way to compromise networks and infect visitors' computers.
Researchers at IBM have used an atomic-force microscope to resolve the chemical structure of pentacene.
Two sequencing companies have raised millions.