Could the NANOGrav signal be primordial?
Pulsar timing array experiments recently reported evidence for a background of gravitational waves traveling through the universe. Is it possible that this signal is primordial in origin?
How (and How Not) to Build High-Frequency Gravitational Wave Detectors
Detecting high-frequency gravitational waves is a challenging task. Today’s paper proposes several novel experimental methods with promising sensitivities.
Using Planetary Magnetospheres to Detect Gravitational Waves
Can planetary magnetospheres be used as gravitational wave detectors? Find out in today’s paper!
Meet the AAS Keynote Speakers: Kathryne Daniel
Today we interview astrophysicist Kathryne Daniel for her plenary talk at #AAS242!
Gravitational Waves, à la General Relativity or Scrambled?
Have any gravitational wave signals been scrambled? Today’s authors search for this beyond-general relativity effect.