Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...

By looking at light from distant exploding stars called supernovas, in 1998 astronomers discovered the universe isn’t just ...

The universe is undergoing an accelerated expansion. We call the source of this expansion dark energy – a mysterious form of ...

Dark energy does not exist, some scientists have claimed – which could help get rid of one of the universe’s biggest mysteries. For a century, scientists have thought that the universe was ...

It also raised the question of what was causing this acceleration. Cosmologists eventually decided that the expansion was being driven by a force they called dark energy and began to develop a ...

A controversial new model is presenting challenges to the long-theorized existence of mysterious dark energy throughout our ...

Related: What we do - and don't - know about dark energy This result hinges on a ... of the universe), they can have ...

Dark energy and dark matter refers to the unseen energy and matter components of the Universe. Dark matter is invisible, non-baryonic matter hypothesized to explain phenomena including ...

"Up to this year, most observations were consistent, with dark energy being the cosmological constant. Nonetheless, 2024 was full of hints pointing out this might not be the case." 2024 was a big ...

Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, galaxies cluster through gravitational interactions, forming the ...

Dark energy is just a substance ... He’s upfront about challenges to this idea as well as possible solutions. While the cosmologically coupled black holes hypothesis has observational backing ...