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 ...

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.