NASA Rolls Out Mega Moon Rocket. Here's What You Need To Know

NASA is targeting May as the earliest window for Artemis-1, an uncrewed lunar mission that will be the first flight for SLS and Orion

NASA's massive new rocket is poised to make its first journey to a launchpad on Thursday ahead of a battery of tests that will clear it to blast off to the Moon this summer.

It will leave the Kennedy Space Center's Vehicle Assembly Building at 5:00 pm Eastern Time (2100 GMT) and begin its glacially slow, 11-hour crawl on a transporter to the hallowed Launch Complex 39B, four miles (6.5 kilometers) away.

Here's what you need to know.

Huge rocket, huge cost