Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Exactly 40 years later, Star Trek has just given James T. Kirk his greatest legacy yet. To be captain of the USS Enterprise ...

Explore the mysteries of the universe with "25 Universe Theories That Will Keep You Up at Night" - a mind-bending journey ...

Four attorneys told ABC News they have been denied access to their clients at the Bishop Henry Whipple Federal Building in ...

Demonstrators are continuing to brave frigid temperatures in Minneapolis to protest ICE. Follow for live updates.

Against a backdrop of political division and upheaval, the Rev. Martin Luther King Jr.'s daughter said the holiday honoring ...