The researchers didn’t use some sort of unhackable connection and they didn’t pass notes written in indecipherable code. They had to rely on each other to keep quiet until they could casually drop a major discovery on the world. Here’s how they did it.
The search for primordial B-mode polarizations started in 2001 over a game of tennis. Physicist Jamie Bock, then a researcher at JPL (now at Caltech) had a regular match going with an astrophysics postdoc named Brian Keating (now at the University of California, San Diego).