Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

For a quarter century, cosmology has rested on a simple but audacious idea: that a fixed “cosmological constant” drives the ...

NEW YORK (AP) — Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought. Astronomers know that the universe is being pushed ...

The Vera C. Rubin Observatory will soon open its eyes to the cosmos, and scientists predict it will detect millions of ...

Dark energy is one of the most mysterious features of our universe – we don’t know what it is, but it controls how the universe is expanding, as well as its ultimate fate. Now, a study of millions of ...

This study could transform our understanding of the future of the universe and raise the possibility that the universe may ...

WASHINGTON (Reuters) - New data involving millions of galaxies and luminous galactic cores is providing fresh evidence that the enigmatic and invisible cosmic force called dark energy - responsible ...

Studies suggest that the universe's expansion is decelerating — but what could that mean for the future of the cosmos?

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

Scientists with the Dark Energy Spectroscopic Instrument (DESI), an international research collaboration, presented new evidence Wednesday that bolstered its recent finding that dark energy is not ...