Live Blog: NASA's about to blast its megarocket to the moon

Welcome to Mashable's coverage of NASA's return to the moon. This mission, called Artemis I, is the agency's first pivotal test of its new powerful megarocket, the Space Launch System, or SLS. After numerous delays, NASA hopes to blast the 322-foot-tall vehicle into space in the early hours of Nov. 16. The two-hour launch opportunity opens up at 1:04 a.m. ET.

Artemis 1, if successful, will send an uncrewed Orion capsule — which will one day carry up to six astronauts — around the moon, before it returns to Earth and splashes down in the Pacific Ocean. Launching a new rocket is complex and challenging. But if the endeavor succeeds, SLS will become the most powerful operational rocket on Earth. Crucially, a successful Artemis I mission will set the stage for Artemis II, a flight that will carry humans to the moon's orbit for the first time in over 50 years.