The most precise measurement of the expansion rate ever made suggests an unknown force may be affecting the universe.

Scientists have devised a new method of measuring the rate of expansion of the universe. According to the University of Illinois Urbana-Champaign, the research paper was accepted for publication on ...

The universe is expanding 'too fast', a study has warned – and scientists have no idea why. An international team of astronomers have carried out some of the most precise measurements yet of how ...

For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe expanding right now? The expansion rate, called the Hubble constant, ought to come out the ...

The most precise measurement yet of how fast the Universe is expanding shows we have a real and serious problem on our hands.