Live coverage: Rosetta’s final hours

SpaceX test-fired a previously-flown Falcon 9 rocket Monday evening on pad 39A at NASA’s Kennedy Space Center in Florida, setting the stage for a launch later this week carrying the Japanese-built, Qatari-owned Es’hail 2 communications satellite to orbit.

It will take approximately one hour for a Japanese H-2A rocket to propel the Hope Mars orbiter on a trajectory to escape Earth’s gravitational bond, kicking off a seven-month journey to the Red Planet.

Making its fifth science pass close to Jupiter’s turbulent cloud tops, NASA’s Juno spacecraft sailed by the solar system’s king planet Friday to collect another treasure trove of data on the giant world’s atmosphere, internal structure, and magnetic field.