the lines to the pulsar maps fall into their correct 3D orientations, indicating where the pulsars actually are in relation to the center of the galaxy and our sun. Even if the aliens can only ...

A new effort to map the rumblings in spacetime caused by enormous black hole collisions paints a surprisingly loud and ...

which will become possible as we get more pulsar timing measurements. As the number of data points grows, we will be able to map our galaxy's gravitational field with incredible precision ...