A spacecraft could plunge into Earth’s atmosphere as soon as Tuesday. While most of the probe will likely burn up during reentry, a few components are expected to survive.

NASA's Van Allen Probe A is falling to Earth much sooner than expected, though the spacecraft's reentry poses a low risk to humans.

Northwestern University engineers have developed the first modular robots with athletic intelligence. They can be combined and recombined in the wild, recover from injury and keep moving no matter ...

The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.

The miniaturized microwave device was allegedly secretly purchased from a complex Russian criminal network for about $15 million in a Pentagon-funded operation.