The cosmological constant is presumably an enigmatic form of matter or energy that acts in opposition to gravity and is considered by many physicists to be equivalent to dark energy. Nobody really ...

The cosmological constant is presumably an enigmatic form of matter or energy that acts in opposition to gravity and is considered by many physicists to be equivalent to dark energy. Nobody really ...

The cosmological constant may be the same thing as dark energy, but it doesn’t need to be. Even if it is, we’d still like to understand why it behaves this particular way and not any other.

Evidence is mounting that cosmic dark energy, long thought constant, may weaken with time - potentially altering the fate of ...

For generations, humans have gazed at the stars and wondered about the ultimate fate of the universe. Will it expand forever ...

The value of the cosmological constant is infamously the worst prediction ever made using quantum field theory; the math says it should be 120 orders of magnitude larger than what we observe.

What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...

According to the new model, the Universe continues expanding but at a gradually slowing rate until reaching maximum size, ...

The cosmological constant is technically just a constant of nature, a number in an equation that can take on any value, says Sabine Hossenfelder, a theoretical physicist at the Munich Center for ...

One could argue that cosmologists had made little progress in our understanding of these basic facts since the discovery of the cosmic microwave background (CMB), the afterglow of the Big Bang, in the ...