Evidence suggests the universe’s expansion has started to slow, not accelerate. The results imply dark energy is weakening ...

The James Webb Space Telescope may have discovered Population III stars, the universe's first generation of stars. They may ...

Scientists have long held that the universe is expanding at an ever-increasing rate, driven by a mysterious but measurable force known as dark energy. Now, a new study might upend that idea, ...

“The Universe will just get colder and deader from now on,” added Douglas Scott, study author and a cosmologist at the ...

Physicists have taken the Universe’s temperature, revealing the searing trillion-degree heat of the Big Bang’s first plasma.

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be ...

The plot represents the new model with the x-axis and the y-axis showing the minimum sizes of collapsing and expanding regions that can impact cosmological measurements. The contours are independent ...

Led by doctoral student Tatsuya Kotani and Professor Tomoharu Oka from Keio University, the research team measured the ...

The Franklin Institute announced Nov. 11 that it is awarding the 2026 Benjamin Franklin Medal in Physics, one of the nation’s ...

The universe may have been born out of nothing, with an "anti-universe" twin where time runs in the opposite direction—rather than exploding from an infinitely small and dense point, or "singularity." ...