http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. have built the first optical frequency comb -- a tool for precisely measuring different frequencies of visible light -- that actually looks like a comb. http://www.physorg.com/news176046009.html Physics Thu, 29 Oct 2009 14:41:00 EST news176046009 Researchers at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. have created an "astro-comb" to help astronomers detect lighter planets, more like Earth, around distant stars. The Harvard group will present their findings at the 2009 Conference on Lasers and Electro Optics/International Quantum Electronics Conference. http://www.physorg.com/news160940960.html Physics Thu, 07 May 2009 18:49:52 EST news160940960 Events on a cosmic scale are often barely discernable on Earth. This explains why astronomers are currently not able to prove directly that the universe is expanding at an ever increasing rate, nor can they search for planets that are roughly the same size as Earth and revolve around a sun-like star. http://www.physorg.com/news140178546.html Physics Tue, 09 Sep 2008 11:29:06 EST news140178546 Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope of a new calibration system for precise spectrographs. The method uses a Nobel Prize-winning technology called a 'laser frequency comb', and is published in this week's issue of Science. http://www.physorg.com/news139755149.html Physics Thu, 04 Sep 2008 13:52:29 EST news139755149