The early universe experienced a phase of rapid expansion, known as inflation. For decades, cosmologists assumed that this ...

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.

"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 ...

That's why astronomers have thought that dark energy could be the same thing as Albert Einstein's "cosmological constant," which was an extension of his theory of general relativity. Einstein ...

The ΛCDM model incorporates dark energy using the cosmological constant, Λ, but it also attempts to account for the powerful gravitational effects thought to be generated by cold dark matter, even ...

Many scientists have also pointed out that the known properties of dark energy are consistent with a cosmological constant, a mathematical Band-Aid that Albert Einstein added to his theory of ...

He even added in an extra term in his equations, a sort of anti-gravity called the cosmological constant, to make sure it was so. Einstein later called it his “greatest blunder” – although ...

Astronomers also use gravitational lensing to map dark matter — an invisible substance that makes up about 85% of the universe's mass. They create the maps by observing how much dark matter ...