Astronomers are closing in on a result so statistically secure that, in their language, it borders on certainty: a 99.9999999 ...

Scientists believe that in the very early universe, everything was incredibly tiny, chaotic, and full of random energy ripples, known as quantum foam. It was a state where spacetime was unstable, and ...

For over two decades, cosmologists have believed that the universe is expanding at an accelerating pace, driven by a ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Will the universe keep existing forever? An astrophysicist explains how scientists aren’t entirely sure, but they can make predictions.

New gravitational lensing measurements by the TDCOSMO Collaboration support the Hubble Tension, confirming differences between Early and Late Universe Hubble Constant values using updated ...

The ‘inflationary’ model of cosmology explains many large-scale features of the Universe as the result of a primordial period of exponential, almost instantaneous cosmic expansion called inflation.

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

The new study used the known distance to a galaxy called M106/NGC 4258 — a spiral galaxy in the constellation Canes Venatici — as a reference point. The universe is expanding faster than astronomers ...

Scientists are rethinking the universe’s deepest mysteries using numerical relativity, complex computer simulations of Einstein’s equations in extreme conditions. This method could help explore what ...

The universe's expansion is similar to a balloon inflating; the surface expands, causing dots (galaxies) to move apart. Galaxies farther away from us appear to recede faster than closer ones. The ...