Findings back Einstein’s theory and raises new questions on universe’s expansion The Dark Energy Spectroscopic Instrument at Kitt Peak National Observatory (above) in Arizona, which can ...

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they ...

Since the discovery of the acceleration, theorists have calculated that the universe will continue to expand faster and ...

Because dark energy is the biggest component of the universe, its behavior determines the universe’s fate, explained David Spergel, an astrophysicist and president of the Simons Foundation.

There's a lot riding on the answer. Because dark energy is the biggest component of the universe, its behavior determines the universe's fate, explained David Spergel, an astrophysicist and ...