Video: Falcon 9 rocket lifts off from pad 39A (members only)

After missing out on an opportunity to win up to $12 million in prize money through DARPA’s Launch Challenge earlier this month, Astra is gearing up for another possible orbital launch attempt next week from Alaska, the company’s chief executive said Friday.

A forecast of low ceilings, thick clouds and rainy weather Thursday has led NASA and Northrop Grumman officials to push back the launch of an Antares rocket and a space station-bound supply ship from Virginia’s Eastern Shore to Friday morning.

Watch as NASA holds a briefing at the Kennedy Space Center on the four agency technology payloads that are part of the STP-2 mission flying into orbit aboard a SpaceX Falcon Heavy rocket.