Live coverage: Astra scrubs launch attempt at Cape Canaveral

Astra called off its first launch attempt from Cape Canaveral Saturday afternoon due to a problem with a ground radar system. The mission from Florida follows the company’s first successful orbital test flight from Alaska last year. Loaded with four CubeSat nano-payloads, Astra’s small launcher is now set for liftoff no earlier than Monday from pad 46 during a window between 1 p.m. and 4 p.m. EST (1800-2100 GMT).