Photos: Atlas 5 rocket aims for International Space Station

Worsening weather at Rocket Lab’s New Zealand launch facility forced officials to call off the liftoff of a new commercial satellite booster for the third straight day Tuesday.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the first 10 next-generation satellites for Iridium’s voice and data relay fleet.

Hardware for two air-dropped Pegasus XL launchers previously purchased by Stratolaunch, a space launch company founded by the late billionaire Paul Allen, are now back under Northrop Grumman control and for sale to NASA, the Air Force, or commercial satellite operators, industry officials said.