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Tobacco Smoke Affects Early Human Embryonic Development Posted: 17 Mar 2012 08:30 PM PDT Scientists have gained insight into how second-hand tobacco smoke damages the earliest stages of human embryonic development. The UCSF-led team made its discovery by studying the impact of smoke on human embryonic stem cells as they differentiated, or specialized into various cell types, in the culture dish. They determined that both nicotine and non-nicotine components of tobacco smoke impede the cells from specializing into a broad range of cell types, including those of the blood, heart, musculoskeletal systems and brain. read more

Launch of NASA's NuSTAR Mission Postponed Posted: 17 Mar 2012 10:51 AM PDT The planned launch of NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) mission has been postponed after a March 15 launch status meeting. The launch will be rescheduled to allow additional time to confirm the flight software used by the launch vehicle's flight computer will issue commands to the rocket as intended. read more

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