Video: Highlights of weekend’s Delta 2 launch

United Launch Alliance teams mounted a top secret payload for the National Reconnaissance Office on top of an Atlas 5 rocket Monday at Cape Canaveral in preparation for a liftoff scheduled just after sunset Nov. 3.

An Indian software developer and mechanical engineer combing through high-resolution imagery captured by a NASA spacecraft has located debris scattered on the lunar surface in September by the crash of the Vikram lander, India’s first probe to attempt a soft touchdown on the moon, NASA said Monday.

During a fourth spacewalk Saturday to wrap up repairs of the coolant system in a $2 billion cosmic ray detector, Italian astronaut Luca Parmitano and Drew Morgan discovered a leak in one of eight coolant lines that were spliced into a new pump module during three earlier excursions. But Parmitano was able to tighten a fitting on the line and the astronauts were able to complete the repair work, setting the stage for the instrument to resume science operations.