The two-hour window opens at 2:17 p.m. ET.
But first, the rocket has to lift off. NASA will begin fueling the SLS rocket with its 730,000 gallons of super-cold propellant at about 5:45 a.m. EDT , if Mother Nature cooperates. A weather delay during Monday's launch attempt stalled fueling for nearly an hour.
NASA currently has a 60% chance of good weather at launch time for Artemis 1. But the agency also has a two-hour window in which to fly the mission, with weather forecasts improving to an 80% chance of good conditions by its end. If NASA can't launch today, the agency could try again on Monday , and possibly Tuesday . After that, NASA would have to roll the towering SLS rocket back into its hangar to recheck critical safety gear, its flight termination system, and recharge batteries on its cubesats, among other things.Florida tourism officials have estimated the Labor Day holiday crowds for Artemis 1 toonce visiting cruise ships are included. U.S.
But no one may be as eager as NASA's launch team, especially after it has checked and double-checked the rocket for flight, according to Jeremy Parsons, NASA's deputy manager of exploration ground systems.
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