Photos: Atlas 5 rocket aims for International Space Station

Watch a replay of the launch and landing of SpaceX’s Falcon 9 rocket on Jan. 7 at Cape Canaveral.

In the ten years since its launch from Cape Canaveral, NASA’s Dawn spacecraft has orbited the two largest worlds in the asteroid belt and overcome defective components that threatened to derail the mission on its 4 billion-mile voyage, discovering unexpectedly rich geologic tapestries suggesting both destinations have a watery past.

China launched the fourth in a series of high-resolution Earth-imaging satellites Saturday, expanding an orbiting fleet of reconnaissance craft that likely serve the Chinese military.