the best science on the web about
dark energy

Dark Energy
Image: NASA

Dark Energy

This "mystery force" is changing the universe, forcing galaxies farther apart and stretching space faster and faster. Unchecked, it could "be the death of the universe, tearing even atoms apart."

Take a closer look at dark energy, starting with the Big Bang.

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Cosmic Perspective: Dark Matter

Cosmic Perspective: Dark Matter

It's humbling, says astrophysicist Neil deGrasse Tyson, that we know nothing about 96% of the universe. But to a scientist, it's also "a thrilling prospect." Find out why. More...

Video
NOVA/PBS
2011 Nobel Prize: Dark Energy Feat

2011 Nobel Prize: Dark Energy Feat

Caltech's Sean Carroll zips through an explanation of dark energy in this fast-paced, easy-to-understand video. More...

Video
MinutePhyiscs
Dark Energy: The Biggest Mystery in the Universe

Dark Energy: The Biggest Mystery in the Universe

Locked in freezing darkness for 6 months of the year, the South Pole is a great place to study dark energy. Here's what astronomers there are finding. More...

Article
Smithsonian
Dark Energy Survey Begins Five-Year Mission

Dark Energy Survey Begins Five-Year Mission

To probe the mystery of dark matter, the world's most powerful digital camera is snapping pictures of over 100,000 galaxies. Take a closer look. More...

Article
National Optical Astronomy Observatory
Dark Energy, Dark Matter

Dark Energy, Dark Matter

No one knows why the expansion of the universe seems to be accelerating. Is it because of some mysterious kind of energy, or is it an illusion caused by a mistake in our understanding of gravity? More...

Article
NASA
One Cosmic Puzzle Solved, Many to Go

One Cosmic Puzzle Solved, Many to Go

Faster and faster, dark energy is shoving the galaxies apart. Listen as Adam Riess, one of the astrophysicists who discovered dark energy, explains how strange it is. More...

Profile
NPR
Patricia Burchat: Shedding Light on Dark Matter

Patricia Burchat: Shedding Light on Dark Matter

Physicist Patricia Burchat brings the biggest mysteries in the universe to life — dark matter and dark energy, which together make up 96% of the universe. More...

Video
TED
Space: Study Sheds Light on Dark Energy

Space: Study Sheds Light on Dark Energy

Huge clusters of galaxies look as if they should be merging, but something is keeping them apart. Have astronomers found more evidence of dark energy in action? More...

Video
Discovery
The Energy Distribution of the Universe

The Energy Distribution of the Universe

About 96 percent of the universe is made up of dark matter and dark energy. X-ray astrophysics is crucial to understanding the dark, mysterious parts of the universe. Take a look. More...

Interactive
Chandra X-Ray Observatory

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