Dr Niamh Shaw, who you will all know from Space Hub, is back at NASA as we take another small step before the giant leap back to the Moon.
She is at Kennedy Space Center where the Artemis 1 mission will see what is known as a wet launch. It's a really big test where they move the rocket in place and even do a full countdown.
Click here to see Niamh's Instagram where she will be giving live updates this evening and tomorrow.
In 2019, the year of 50th anniversary of the Apollo lunar human space programme, Jim Bridestine, then NASA Administrator announced details of The Artemis mission and with it a commitment to accomplish a single main goal: to establish a permanent human base on the moon.
Estimated to cost nearly $93 billion through to 2025, NASA's first milestone in this monumental programme, Artemis I is nearing its launch date.
From NASA: "Watch as the rocket and spacecraft for our Artemis I mission around the Moon move to their launchpad at Kennedy Space Center."
The NASA YouTube channel is broadcasting it all live below...
"The integrated Orion capsule and Space Launch System rocket will take a 4-mile journey from the Vehicle Assembly Building to launch pad 39B, with the full travel time expected to last from six to 12 hours.
This step is in preparation for a prelaunch test known as wet dress rehearsal, which includes loading the rocket's propellant tanks and conducting a launch countdown."
