Video: Falcon 9 fires up engines for static fire test (members only)

China’s first X-ray astronomy satellite launched Thursday on a mission to survey the Milky Way galaxy for black holes and pulsars, the remnants left behind after a star burns up its nuclear fuel.

Two days after launching from the Baikonur Cosmodrome in Kazakhstan, three new crew members arrived Friday at the International Space Station to begin a six-month stay. Docking of the crew’s Soyuz MS-09 spacecraft to the station’s Rassvet module occurred at 9:01 a.m. EDT (1301 GMT).

NASA has submitted a draft agreement for government approval that would allow Russian cosmonauts to begin flying to the International Space Station on U.S. crew capsules next year in a no-funds exchanged arrangement with Russia’s space agency. In return, Russia will continue launching U.S. and international astronauts on Soyuz missions.