NASA probe crashes into asteroid in planetary defense test
The 14,000-mph impact is designed to test whether a future threatening asteroid can be nudged off course.
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The 14,000-mph impact is designed to test whether a future threatening asteroid can be nudged off course.
On the eve of NASA's historic flyby of Pluto, scientists announced Monday the New Horizons spacecraft has nailed the size of the faraway icy world.
It's just two days away from a historic space mission at the edge of the solar system.
The coach of the University of Denver's surprising Pioneers lacrosse team says his team has been fearless this year in their quest for an NCAA championship.
