By cross-correlating the arrival times of all the different pulses to
nanosecond precision
across decades, astronomers hope to detect gravitational waves with wavelengths measured in light - months and light - years as their passing periodic ripples distort spacetime around Earth.
Know why that 3 - series driver tears up an on - ramp out of nowhere, swoops
across three lanes of traffic right in front of you, then settles into the fast lane for a
nanosecond before departing toward the horizon at warp speed?