IE 11 is not supported. For an optimal experience visit our site on another browser.

Artemis launch back on schedule after delays

The debut flight of the uncrewed Space Launch System rocket is scheduled to lift off from Kennedy Space Center at 1:04 a.m. ET Wednesday.
NASA Prepares For Artemis Moon Mission Launch
The Artemis 1 moon rocket and the Orion spacecraft sit poised on Launch Pad 39B in Cape Canaveral, Fla., on Sunday. Red Huber / Getty Images

NASA is readying its next-generation megarocket and space capsule for a historic test flight to the moon early Wednesday.

The debut flight of the agency’s uncrewed Space Launch System rocket is scheduled to lift off from Kennedy Space Center in Cape Canaveral, Florida, at 1:04 a.m. ET. If it is successful, the mission would mark a crucial step in NASA’s yearslong program to return astronauts to the moon.

Forecasts project a 90% chance of favorable weather conditions during the two-hour launch window. Live coverage will be broadcast on NASA TV beginning at 10:30 p.m. ET Tuesday.

The long-awaited mission, called Artemis I, had been scheduled for late August, but it was postponed after a series of hazardous leaks were detected during the fueling process. Leaking hydrogen fuel similarly thwarted a second attempt in early September.

Last week, NASA was forced to stand down as Hurricane Nicole slammed into Florida's east coast Thursday. The SLS rocket remained on the launch pad, suffering only minor damage from high winds, the agency said.

“Space Launch System engineers have performed detailed analysis to confirm the sustained and peak winds experienced during the storm have no adverse effect on the structural strength of the rocket,” NASA officials wrote in an update Friday after the storm.

If it goes ahead, Wednesday's liftoff will be the first flight of the 322-foot Space Launch System, which NASA has described as the “most powerful rocket in the world.” The uncrewed mission is designed to test both the booster and the Orion capsule before NASA sends astronauts back to the lunar surface.

The $4.1 billion flight is just the first step in NASA’s attempt to return to the moon. The agency has spent more than a decade developing its new megarocket, which surpasses the capabilities and size of the iconic Saturn V boosters used during the Apollo program, which ended in the 1970s. NASA’s new moon initiative was named Artemis after the goddess of Greek mythology and twin sister of Apollo.

NASA officials have said astronauts could return to the surface of the moon as early as 2025. As part of the Artemis program, the agency envisions regular missions to establish a base camp on the lunar surface before NASA eventually ventures to Mars.