Astrophysics Professor Neta Bahcall discusses her research on dark matter and its effects on the expansion of the universe.

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

The largest-ever three-dimensional map of the cosmos, plotting out some 15 million celestial objects, could help reveal the ...

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

Scientists using the ACT have captured the clearest images of the universe first light, refining its age and expansion rate.

The standard model of how the universe works involves the widely accepted theory that dark energy is a fundamental constant ...

Findings from the Dark Energy Spectroscopic Instrument (DESI) suggest that dark energy could be evolving over time. If ...

Our current best theories of the universe suggest that dark energy is making it expand faster and faster, but new ...

A new map of cosmic expansion suggests that dark energy evolves over time, hinting that the universe doesn’t work the way we ...

Last year, an enormous map of the cosmos hinted that the engine driving cosmic expansion might be sputtering. Now physicists ...

The “dark energy” field that has fueled the expansion has been weakening over the past 4 billion to 5 billion years, new data ...

The European Space Agency’s “dark universe detective” discovered millions of new galaxies and offers potential clues about ...