The MICROSCOPE mission tested the weak equivalence principle with free-falling objects in a satellite. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

In new studies published in Physical Review Letters and a special issue of Classical and Quantum Gravity on September 14, a team of researchers present the most precise test yet of the Weak ...

Free falling Artist's impression of the MICROSCOPE satellite. (Courtesy: CNES) The equality of inertial and gravitational mass central to Einstein’s general theory of relativity has been confirmed at ...

In 2016, a team of French physicists sent an ultra-sensitive, drag-free satellite called MICROSCOPE into space to study a 100-year old theory of Einstein’s that could change everything we know about ...