Whatever it is, there’s a lot of it: It appears to make up about 70% of the universe today. Coined by University of Chicago astrophysicist Michael Turner in 1998, dark energy remains one of the great ...

Moreover, evidence from the Dark Energy Spectroscopic Instrument (DESI) and other high-precision datasets has shown that alternative models may better fit observed data than the ΛCDM framework.

Dark energy, one of the most mysterious concepts in astronomy, has baffled the world's greatest minds for decades. Dark energy is a placeholder term scientists use to refer to whatever is causing ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion. When you ...

An international consortium of scientists studying dark energy said Tuesday their three-dimensional map of the universe over 11 billion years suggested the cosmos wasn't steadily expanding ...

Scientists challenge the existence of dark energy. They suggest the universe's accelerating expansion is due to uneven gravitational effects on time. This new theory, called the "timescape" model ...