Abstract:The Long March-2D carrier rocket carrying the "SJ-10", the 24th recoverable satellite of China, blasts off from the launch pad at the Jiuquan Satellite Launch Center at 1:38'04' am of April 6, 2016. It took 559 seconds to send this satellite, the second of the series, into the circular orbit of approximately 250 km high. The SJ-10 program provides a mission of space microgravity experiments including both fields of microgravity science and space life science. It is designated to promote the scientific research in the space microgravity environment by operating the satellite at lower earth orbit for 2 weeks. There are 19 scientific facilities on board the satellite, of which 9 biological facilities, multiple work position furnace of space material science, and transport coefficient measuring device of fluid physics in re-entry module, and 8 microgravity facilities in orbit capsule. Totally 28 experiments include 18 ones in the field of microgravity science (6 in microgravity fluid physics, 4 in microgravity combustion, and 8 in space materials science) and 10 in the field of space life science (3 in radiation biology, 3 in gravitational biology, and 4 in space biotechnology). These experiments were selected from more than 200 applications. Scientific purposes of these experiments are summarized as follows: to promote the basic research of fluid physics and biology experiments; to support the manned space flight for fire safety research; to improve the human health by biotechnology studies; and to develop the high-technology by experiments of coal combustion, materials processing and biotechnology.