Probing the Sound Speed of Dark Energy with a Lunar Laser Interferometer
Alfredo Gurrola, Robert J. Scherrer, Oem Trivedi
arxiv.org/abs/2601.22084 [πππππ-ππ.π²πΎ ππ-ππ πππ-ππ]
A null test of the Hubble tension
Gerasimos Kouniatalis, Emmanuel N. Saridakis
arxiv.org/abs/2601.22043 [πππππ-ππ.π²πΎ ππ-ππ]