The latest numbers from the Dark Energy Survey (DES) indicate that 31.5% of the universe is matter (a combination of dark and ...

represented by the cosmological constant in Einstein’s general theory of relativity. These days, almost all of cosmology assumes something called the Lambda-CDM model—CDM for cold ...

Recent astronomical observations show that the universe is expanding at an accelerating rate, something that defies our ...

Estimates of how fast the universe is expanding disagree. Could a new form of dark energy resolve the problem?

and a constant amount of dark energy (Einstein's cosmological constant, denoted Lambda). Since its origin approximately 25 years ago, the model has successfully explained a great many observations ...