Probing Dark Energy

At www.jpl.nasa.gov/news/ August 19th (NASA newsletter) … claims astronomers hav e devised a method to measure dark energy – the mysterious force purported to be pushing the universe apart at an ever increasing speed. They homed in on a huge cluster of galaxies at the extreme point of vision of the Hubble Space Telescope and they hope to be able to calculate the speed of energy involved – accurately. In turn, they hope this will eventually lead to an explanation of what dark energy actually is.