The universe’s expansion is accelerating, not decelerating. Our understanding of how the universe works may need an update.

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But — although it represents 70% of the energy in the cosmos — researchers still have no idea exactly what dark energy is, ...

The spins of some early galaxies could be a clue that the entire observable universe exists within a black hole—except, that ...

The first results from the Dark Energy Spectroscopic Instrument (DESI) are a cosmological bombshell, suggesting that the ...

Using a telescope at Kitt Peak, scientists have produced the largest 3D map of the universe ever made and uncovered ...

Dark energy may have a completely unknown aspect of physics acting as an accomplice in its efforts to defy gravity, ...

The Simons Observatory, a most advanced network of telescopes aimed at mapping the Cosmic Microwave Background (CMB) with unprecedented precision, has reached a major milestone: the Large Aperture ...

A mix of familiar events and films, a live talk about dark matter and a “Dome After Dark” audiovisual/musical performance dot ...

If dark energy continues to weaken, the accelerating expansion of the universe could slow — and possibly reverse. In that ...

The trails of stars are seen above Kitt Peak National Observatory, where a telescope is mapping the universe to study a mysterious force called dark energy. (NSF’s NoirLab) NEW YORK — Scientists are ...