Q&A with Opher Doron, general manager of IAI’s space division (members only)

Scientists examining imagery from Europe’s Rosetta spacecraft have logged numerous changes to the face of comet 67P/Churyumov-Gerasimenko, from collapsing cliffs to a growing crack through the comet’s neck that could foretell the eventual unraveling of the city-sized icy world.

The Centaur upper stage launching the Cygnus space freighter Tuesday persevered through a velocity shortfall from the first stage of the Atlas 5 rocket, improvising with a longer firing to reach the correct orbit.

Powering into a pre-sunrise sky over Florida’s Space Coast on Friday, a SpaceX Falcon 9 rocket provided a memorable show as it climbed into sunlight, delivering a Dragon cargo craft to orbit on a trip to the International Space Station.