There’s been a dramatic power shift — from the U.S. House to U.S. Senate, where the state's junior senator, Ted Cruz, is now ...

As the frozen parts of our planet face rapid and unprecedented change, NSIDC has been sharing how and why its key features are changing.

The video discusses NASA's shuttle Endeavor, which is set to launch with a mission to rescue a malfunctioning international communication satellite. The astronauts will use the shuttle's robotic arm ...