http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The Mars rover Curiosity is sidelined again, further delaying the restart of science experiments, after recovering from a computer problem. http://phys.org/news282833155.html Space & Earth Mon, 18 Mar 2013 13:46:02 EST news282833155 (Phys.org) —ETH-Zurich researchers look several billion years back in time, when life on Earth was just beginning. In a laboratory experiment, they examined how a primitive protein was able to evolve. However, the journey into the past also afforded the scientists a glimpse into the future of synthetic biology. http://phys.org/news281780054.html Biology Wed, 06 Mar 2013 08:40:01 EST news281780054 If you were packing for Mars, what would you bring? http://phys.org/news263304329.html Space & Earth Sat, 04 Aug 2012 13:06:28 EST news263304329 A little less than 2 billion years ago, metals including copper, molybdenum and zinc became available to primitive cells, at the same time that the cells began to become much more complex. Scientists indicate that they have identified the event that introduced these metals, which made it possible for those primitive cells to develop, evolve, and spread. http://phys.org/news259480306.html Space & Earth Thu, 21 Jun 2012 06:52:06 EST news259480306 NASA's Mars rover, nicknamed Curiosity, is zeroing in on its August landing on the Red Planet and aims to touch down closer than expected to its mountain target, the US space agency said Monday. http://phys.org/news258645751.html Space & Earth Mon, 11 Jun 2012 15:02:37 EST news258645751 It's no secret that Mars is a beaten and battered planet -- astronomers have been peering for centuries at the violent impact craters created by cosmic buckshot pounding its surface over billions of years. But just how beat up is it? http://phys.org/news258639693.html Space & Earth Mon, 11 Jun 2012 13:21:58 EST news258639693 In late 2010, NASA set the Internet buzzing when it called a press conference to discuss an astrobiological finding that would impact the search for extraterrestrial life. Many speculated that some primitive life had been found on Mars or one of Saturn’s moons. But the evidence was found on Earth; a strain of bacteria in California’s Lake Mono that had arsenic in its genetic structure. The discovery implied that life could thrive without the elements NASA typically looks for, mainly carbon and phosphorous. But now, a new study challenges the existence of arsenic-based life forms.  http://phys.org/news247393380.html Biology Thu, 02 Feb 2012 08:23:12 EST news247393380