Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the ...

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent result reinforces it.

The vernal equinox marks the start of spring in the Northern Hemisphere — so does that mean this is the only day out of the ...

A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies.

Physicists had long assumed that the elusive force has constant strength. But the latest results from a project to map the ...