These are the questions we're talking about when we refer to the geometry of the universe. We measure the geometry of the universe by measuring the average density of matter in space and comparing ...

Introduction to Riemannian geometry. Riemannian connections, curvature and geodesics. Applications to submanifolds and to the connection between topology and curvature. The course aims to give a ...

Since the differential stretching of light results from our calibration of time and distance rather than from a speeding universe, dark energy is not required in this paradigm. Time passes quicker in ...

A new underground facility called DUNE, which will accelerate particles for 800 miles between Illinois and South Dakota, ...

For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the Andromeda galaxy. Don't go looking for it -- the flickering star is 2.2 million ...

The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into ...

When we turn to “complex” extraterrestrial life or “intelligent” aliens, our results were 67.4 percent agreement, and 58.2 ...

A rare group of aligned, star-birthing dwarf galaxies resemble a cosmic string of pearls. Astronomers have discovered a rare ...