Inner Workings: Search intensifies for primordial gravitational waves [Astronomy]

In March 2014, researchers who had been working at the South Pole made a stunning announcement: With a telescope called BICEP2 (Background Imaging of Cosmic Extragalactic Polarization), they had found evidence of primordial gravitational waves, or ripples in the fabric of spacetime produced in the first fractions of a second...

Source: Proceedings of the National Academy of Sciences - May 13, 2019 Category: Science Authors: Anil Ananthaswamy Tags: Inner Workings, Front Matter Source Type: research