‘Ruler’ to measure space

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

By Stephen Ornes, 14:07 PM April 16, 2012

More than 80 years ago, Albert Einstein thought he’d made a big mistake. But a new study based on observations of distant galaxies suggests that the brilliant scientist was most likely correct.

In 1917, the famous German-born physicist — who studied energy, matter and the interaction between the two — wrote down his ideas about the shape and size of the universe. But Einstein had a problem. Although he thought the size of the universe was not changing, his mathematical equations showed ot...

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