A team of physicists has proposed that the Big Bang did not mark the absolute beginning of everything but instead occurred ...

For the last 25 years, most scientists have believed that about 70% of the universe is formed by something called ‘’dark ...

We’ve been told by science that the universe is expanding relentlessly, driven by a mysterious force called dark energy.

Dark energy is one of those cosmological features that we are still learning about. While we can't see it directly, we can most famously observe its effects on the universe—primarily how it is causing ...

(CNN) — The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

Add Yahoo as a preferred source to see more of our stories on Google. To astronomers in the 1990s, these three facts were self-evident: The universe is expanding; all the matter in the universe is ...

The big bang wasn’t the start of everything, but it has been impossible to see what came before. Now a new kind of cosmology is lifting the veil on the beginning of time ...

(CNN) — The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

The universe isn’t just growing—it’s speeding up as it does. That discovery stunned scientists, upending long-held ideas about gravity and motion in space. This rapid expansion wasn’t predicted by ...

Physicist Sean Carroll explains how physics, astronomy, philosophy, and classics all help us understand the expanding ...