“Dark energy” is a term scientists use to refer to whatever is causing the universe to expand faster over time. We don’t know exactly what dark energy is—no one has ever directly seen or measured ...

or ΛCDM—relies on hypothesized dark energy to explain the accelerating expansion of the universe. However, one competing theory known as “timescape cosmology” suggests that many ...

But what’s behind this acceleration? Enter dark energy. It’s one of the most debated and intriguing missing puzzle pieces of modern physics – a mysterious form of energy believed to ...

The Dark Energy Survey examines the largest-ever maps of galaxy distribution and shapes, extending more than 7 billion light-years across the Universe. The extraordinarily precise analysis ...