New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

The accelerating expansion of the Universe, first observed in 1998, remains one of the most profound mysteries in modern ...

Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...

The project, called OpenUniverse, relied on the now-retired Theta supercomputer at the DOE’s (Department of Energy’s) Argonne National Laboratory in Illinois. The supercomputer accomplished a process ...

This is called the “heat death” of the Universe, but you can think of it instead as the death of heat. There will be no more differences in temperature anywhere, which means thermodynamics shuts down, ...

According to new research, the earliest seeds of structures may have been laid down by gravitational waves sloshing around in ...

While monitoring the distance to Type Ia supernovas, two separate teams found that not only is the universe expanding but that this expansion is also accelerating. Dark energy was introduced as a ...

In 1998, astronomers claimed that the expansion of the universe was accelerating based on measurements of the brightness of Type Ia supernovae in distant galaxies; they proposed dark energy as the ...

A new study on exploding stars has provided the first evidence for an alternative model of the universe, known as Timescape.