All systems are go at Cape Canaveral. The new Arex I-X—NASA's largest rocket since Saturn V—is now ready to launch at Launch Pad 39B. Update: Launch scrubbed.
After a slight delay this morning, countdown resumed on T minus four minutes at 9.46am Eastern Time (12.46am AEST). There's a cloud formation flying over the pad right now, so they have frozen the countdown. Weather station will return an estimate in five minutes.
Update 1: Upper atmosphere weather is all good through the launch window, till noon today, so as soon as the clouds clear up, the countdown will resume.
Update 2: Countdown has resumed! T minus four minutes and counting.
Update 3: Countdown on hold at T minus two minutes 39 seconds, again for the weather. Damn Florida weather.
Update 4: Countdown back to T minus four minutes. Standing by.
Update 5: Flight director says they are giving it one last go. Launch window ends at 12pm (3am AEST).
Update 6: Launch has been scrubbed because of the bad weather. Ares I-X is being secured. Stay tuned for more news about the next launch attempt.
Go watch live it at [NASA TV]