On the corner of Covington’s historic square is a clock tower. With its ornate white crown, delicate white spire and bold black face encircled with Roman numerals, the clock presides over the square ...

The European Space Agency has launched two atomic clocks on a SpaceX rocket to the ISS to test Einstein's theory of ...

ACES will gather ultra-precise data across at least ten observation windows, each lasting about 25 days during the ...

Testing Einstein’s relativity, measuring fundamental constants, and even searching for dark matter are all on the cards ...