Dark Energy | Astronomy.com

The Mayall Telescope hosts the Dark Energy Spectroscopic Instrument

New findings suggest dark energy may be changing over time

Black Hole in a Star Cluster (Artist's Impression)

Cosmology, Exotic Objects

Could black holes create dark energy?

What is dark energy?

galaxy cluster

Cosmology, Science

What we do — and don’t — know about dark energy

The makeup of the universe

Are the percentages of dark matter and dark energy stable?

The mystery of dark energy: This Week in Astronomy with Dave Eicher

The ‘least crazy’ idea: Early dark energy could solve a cosmological conundrum

The Big Freeze: How the universe will die

A field of bright galaxies against a black background. Some forming a central cluster and others are distorted, appearing to wrap around the cluster.

Cosmology, Science

The distance scale of the cosmos: This Week in Astronomy with Dave Eicher

Cosmology, Science

What’s the fate of the universe? This Week in Astronomy with Dave Eicher

Can cosmology untangle the universe’s most elusive mysteries?

Cosmology, Exotic Objects

Charting the universe in 3D