Tag Archives: dark energy

‘Ruler’ to measure space

By Stephen Ornes / April 16, 2012
Scientists study the energetic echoes of the Big Bang to learn more about the size and shape of the universe. Credit: E.M. Huff; SDSS-III; South Pole Telescope. Graphic by Zosia Rostomian.

Study of energy waves formed during the Big Bang supports Einstein’s prediction that a strange, invisible force is pushing the universe apart

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The dark side of the universe

By Stephen Ornes / April 26, 2011
The ghostly blue clouds in the center of the Abell 1689 galaxy cluster show where Dan Coe and his team think dark matter is hiding. Abell 1689 is home to about 1,000 galaxies and trillions of stars. Credit: NASA, ESA, and Dan Coe (NASA JPL/Caltech and STScI)

Most of the cosmos is invisible, but that doesn’t stop scientists from searching for it

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Strange Universe: The Stuff of Darkness

By Emily Sohn / February 9, 2004

Figuring out what’s hidden in outer space between the visible stars and galaxies isn’t easy.

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