Measurements of the faint afterglow of the Big Bang (known as the cosmic microwave background) are also important. They do not directly measure dark energy or how it evolves, but they provide clue ...

Measurements of the faint afterglow of the Big Bang (known as the cosmic microwave background) are also important. They do not directly measure dark energy or how it evolves, but they provide ...

This phenomenon, known as cosmic shear, can provide clues about the role of dark energy in shaping the universe. With this model, they transformed simulated shear data from specific points into ...

Today the canonical story of cosmic evolution describes this tug-of-war between the unwavering push of dark energy and the gravitational pull of matter (including the vast reservoirs of invisible ...

Instead, the amount of dark matter held steady through the breakneck cosmic expansion, surviving into the following epochs. So dark matter may have arisen before normal matter, but what does this ...

Combining that data with state-of-the-art observations of the cosmic microwave background, they found a tension with Lambda-CDM of 3.2 sigma that disappears when dark energy is presumed to change.

The bad news is, no cracks in the cosmic egg.” Dr. Turner, who coined the term “dark energy,” added that if there was a crack, “it has not opened wide enough — yet — for us to clearly ...

The researchers performed a variety of cross-checks, including leaving out the cosmic microwave background or supernova data. Dynamical dark energy still won out. With the first result ...

But the results of DESI’s latest analysis imply that the cosmic expansion is accelerating less now than it was in the past, which does not fit the assumption that dark energy is a cosmological ...