A cartoon illustrates results from the MICROSCOPE satellite mission, which has measured with astronomical sensitivity the falling rate of different objects under gravity.
As part of an effort to establish a lunar time standard, researchers have used relativity to calculate time differences between Earth and the Moon. Read More »
Gravitational-wave signals from black hole mergers could reveal the presence of “gravitational atoms”—black holes surrounded by clouds of axions or other light bosons. Read More »
An analysis of gravitational data from the LIGO detector sets new limits on a wave-like form of dark matter called scalar-field dark matter. Read More »
