Blue Origin is preparing for its biggest launch yet, but on Monday morning the attempt was scrubbed for technical reasons after several delays were made throughout the three-hour launch window. The window originally opened at 1AM ET.

It’s unclear when the Jeff Bezos-owned commercial space company will next attempt to send its 320-foot-tall New Glenn rocket into space for the first time.

The launch of New Glenn comes after almost a decade of development, and its outcome could threaten the…