That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion remains hotly debated, even challenging the standard model of cosmology. A ...

Doubts about the standard model of cosmology are deepening after a new study identified fundamental problems in a recent ...

According to current understanding, the universe is expanding—and is doing so at an accelerating rate. This is believed to be caused by something called the cosmological constant, which was first ...

Einstein’s abandoned cosmological constant made a spectacular comeback when astronomers discovered that the universe’s expansion is accelerating. It now sits at the heart of our best cosmological ...

NASA's Roman Space Telescope is launching soon aboard a SpaceX rocket. This observatory will survey the cosmos for dark ...

Scientists measure the expansion of the universe based on the constant of dark energy, but now experts say the mysterious ...

When you bake a loaf of bread or a batch of muffins, you put the dough into a pan. As the dough bakes in the oven, it expands into the baking pan. Any chocolate chips or blueberries in the muffin ...

A peer-reviewed study declared the universe had stopped speeding up — a direct challenge to the Nobel Prize-winning discovery that it hasn't. The scientists who ...

Scientists at the University of Waterloo have uncovered a bold new way to explain how the universe began—one that could reshape our understanding of the Big Bang. Instead of relying on ...

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the early universe—and that the universe could start contracting at some point.

Dr. Niayesh Afshordi, professor at the University of Waterloo and Perimeter Institute, draws the renormalization group flow for quadratic quantum gravity (University of Waterloo). Waterloo scientists ...

Add Yahoo as a preferred source to see more of our stories on Google. Artist's interpretation of the cosmic distance ladder — a succession of overlapping methods used to measure distances across the ...