Launch of Chinese-French Satellite Scattered Debris Over Populated Area

"A Chinese launch of the joint Sino-French SVOM mission to study Gamma-ray bursts early Saturday saw toxic rocket debris fall over a populated area..." writes Space News:SVOM is a collaboration between the China National Space Administration (CNSA) and France's Centre national d'etudes spatiales (CNES). The mission will look for high-energy electromagnetic radiation from these events in the X-ray and gamma-ray ranges using two French and two Chinese-developed science payloads... Studying gamma-ray bursts, thought to be caused by the death of massive stars or collisions between stars, could provide answers to key questions in astrophysics. This includes the death of stars and the creation of black holes. However the launch of SVOM also created an explosion of its own closer to home.A video posted on Chinese social media site Sina Weibo appears to show a rocket booster falling on a populated area with people running for cover. The booster fell to Earth near Guiding County, Qiandongnan Prefecture in Guizhou province, according to another post... A number of comments on the video noted the danger posed by the hypergolic propellant from the Long March rocket... The Long March 2C uses a toxic, hypergolic mix of nitrogen tetroxide and unsymmetrical dimethylhydrazine (UDMH). Reddish-brown gas or smoke from the booster could be indicative of nitrogen tetroxide, while a yellowish gas could be caused by hydrazine fuel mixing with air. Contact with either remaining fuel or oxidizer from the rocket stage could be very harmful to individuals. "Falling rocket debris is a common issue with China's launches from its three inland launch sites..." the article points out. "Authorities are understood to issue warnings and evacuation notices for areas calculated to be at risk from launch debris, reducing the risk of injuries.

Read more of this story at Slashdot.