"Any indication that [dark energy] is not a constant would be revolutionary and spark intense theoretical work."

Scientists boot up new device to map the universe's dark energy

Dark Energy Conundrum

Last week, scientists achieved "first light" with the Mayall Telescope's Dark Energy Spectroscopic Instrument. It could teach us about dark energy.

Scientists Boot Up New Device to Map the Universe’s Dark Energy

The instrument has the potential to "spark a revolution in theoretical physics."

Some black holes may actually be blobs of dark energy

Cosmic Lookalikes

New calculations of the universe's outward expansion only make sense if it turns out that some black holes are actually giant blobs of dark energy.

Some Black Holes May Actually Be Blobs of Dark Energy

Everything you thought you knew about black holes might be wrong.

Experiment to detect dark energy turns up nothing

Thank You, Next

A new experiment looking for dark energy came back with nothing, helping scientists narrow down future searches for the mysterious force.

Experiment to Detect Dark Energy Turns Up Nothing

Now scientists can rule out several explanations for how it works.

"Our research definitely does not mean that General Relativity is wrong, but it does show that it does not have to be the only way to explain gravity's role in the evolution of the universe."

New "Chameleon Theory" could explain dark energy, how galaxies formed

Alternative Explanations

Chameleon Theory provides an alternative explanation for galaxy formation and the universe's expansion from Einstein's General Relativity.

New “Chameleon Theory” Could Explain Dark Energy, How Galaxies Formed

Chameleon Theory provides a possible alternative to General Relativity.

The spaces between galaxies may be the best place to find dark energy.

Dark energy could be hiding in the "cosmic void" between galaxies

Cosmic Hunt

The universe is speckled with voids that are totally empty, except for the dark energy that's pushing galaxies apart. That's where scientists should look.

Dark Energy Could Be Hiding In The “Cosmic Void” Between Galaxies

If we want to find dark energy, we may have to search in places devoid of everything else.

"This mismatch has been growing and has now reached a point that is really impossible to dismiss as a fluke."

Hubble data: the universe is expanding faster and faster

Expand Universe

New data from the Hubble Space Telescope all-but confirms past findings that the rate of the universe's expansion has accelerated over time.

Hubble Data: The Universe Is Expanding Faster and Faster

But we don't know why it's speeding up.

"Some scientists suggested that new physics might be needed."

Bizarre new data suggests that dark energy is getting stronger

Weird Science

Strange new observations from distant quasars suggest that dark energy could be getting stronger as the universe gets older.

Bizarre New Data Suggests That Dark Energy Is Getting Stronger

It could mean that "dark energy is getting stronger as the cosmos grows older."

New theory: the universe is a bubble, inflated by dark energy

Mr. Universe

A mind-bending new theory claims to make sense not just of the expanding universe and extra dimensions, but string theory and dark energy as well.

New Theory: The Universe is a Bubble, Inflated by Dark Energy

And it's covered with strings that make up its matter.

A look into the universe's past may tell us where we're going.

Telescope upgrade will create the most detailed map of the universe ever

Dark Energy

The Dark Energy Spectroscopic Instrument will provide the best measurements to date on dark energy's impact on the universe.

Telescope Upgrade Will Create the Most Detailed Map of the Universe Ever

The Dark Energy Spectroscopic Instrument will soon start to map one-third of the night sky.

If you push a "negative mass," it would accelerate toward you instead of away.

An Oxford scientist may have solved the mystery of dark matter

Hard Science

A researcher at the University of Oxford says a new theory could explain the mystery of dark matter and dark energy — and it's a mind-bender.

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