Live coverage: International crew lands in Kazakhstan

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.

For the final time, a SpaceX Dragon cargo capsule was released from the International Space Station’s robotic arm Tuesday and splashed down hours later in Pacific Ocean southwest of Los Angeles. Beginning later this year, SpaceX will fly upgraded Dragon freighters that will dock automatically with the space station and parachute into the Atlantic Ocean east of Florida.

Arianespace has received its first two confirmed launch contracts for Europe’s new Ariane 6 rocket, and the company recently announced four more launch bookings to loft communications and weather satellites into orbit aboard Ariane 5 and Soyuz boosters from French Guiana.