Live coverage: Mission control loses contact with Indian moon lander

The European Space Agency’s Rosetta mission will end Sept. 30 with a dicey descent to the core of comet 67P/Churyumov-Gerasimenko, a risky, but potentially rewarding finale punctuated by commands to automatically safe the probe’s rocket thrusters and turn off its radio transmitter.

NASA’s Dawn spacecraft has continued its survey of the dwarf planet Ceres this year, discovering rock-bound ice hidden just beneath the airless world’s rugged surface and a handful of icy outcrops inside craters in the northern hemisphere, raising hopes that Ceres could have once held a buried habitable ocean of liquid water.

More than three weeks after a faulty electrical component halted a countdown moments before liftoff, an Ariane 5 rocket lifted off from French Guiana on Friday with two commercial communications satellites. Launch occurred at 2156 GMT (5:56 p.m. EDT).