Video: Highlights of weekend’s Delta 2 launch

NASA’s Kepler telescope has run out of fuel and ended science operations, closing out a pioneering decade-long mission that showed planets are commonplace across our galaxy, agency officials said Tuesday.

SpaceX readied a Falcon 9 rocket for takeoff Monday to launch a planet-hunting satellite for NASA that will monitor the light from countless stars to find potentially habitable planets worthy of follow-up studies by more powerful ground- and space-based observatories.

Boeing officials said Monday the company’s Starliner crew capsule will fly a second time without astronauts after software problems and other issues plagued a first test flight in December, preventing the ship from reaching the International Space Station.