On September 14, 2015, the two detectors of the Laser
Interferometer Gravitational-Wave Observatory (LIGO) observed a
gravitational-wave signal from the merger of a pair of black holes.
While this impressive technological triumph was celebrated...
The next time you are enjoying the sun’s warm rays, think of the
tremendous voyage those photons have taken to get to you.
Traveling, by definition, at the speed of light they left their
point of origin about eight minutes previously in a furious...