Watch NASA’s STP-2 technology briefing

SpaceX test-fired its next Falcon 9 rocket at NASA’s Kennedy Space Center on Saturday in preparation for the company’s 17th launch of the year, a mission tentatively set for liftoff Wednesday with a secretive payload named Zuma for the U.S. government.

India’s Polar Satellite Launch Vehicle lifted off at 2234 GMT (6:34 p.m. EDT) Wednesday with the country’s ninth navigation satellite, bolstering a regional positioning and timing network after the loss of a navigation craft on a previous PSLV mission last year.

European engineers who developed a small satellite hitching a ride to the International Space Station aboard a SpaceX supply ship Monday are gearing up for a first-of-a-kind experiment to examine ways to snare a chunk of space junk and tug it back to Earth.