The discovery in 1998 that the Universe is expanding faster over time shook the foundations of cosmology. This finding ...

The field equations then give the correct dynamics for the electromagnetic field. When Albert Einstein formulated his theory of gravity, he used mathematics known as pseudo-Riemannian differential ...

All of this is calculated with the equations that underpin general relativity: Einstein's field equations. "The way that the space-time curves is determined by the Einstein field equations ...

Our starting point is Einstein’s famous equations of general relativity. Here we have the Einstein field equations. We have the Einstein tensor, which describes the geometry of spacetime ...

Lieu started out trying to find another solution to the Einstein field equations, which relate the curvature of spacetime to ...