Most of the world is aware of the launch of NASA's huge spacecraft on the Monday of this week. 

7 Amaging Things About Artemis I Launch  You're Not Aware 

However, the inaugural rocket launch for the long-anticipated Space Launch System (SLS) and the Artemis program is fascinating and controversial for various reasons. 

One of the strongest rockets NASA has ever constructed.–SLS employed in Artemis-I will generate about 15 percent more thrust than Saturn V rocket that sent Apollo astronauts to moon.  .

This is NASA's first step toward Mars.– The main purpose of Artemis I is to pave the way for astronauts to return to the lunar surface.

However, the complete plan for Artemis will involve the next step of putting an orbital lunar gateway in the lunar orbit. This is a waypoint or miniature space station for future moon missions. 

This is the sole SLS test flight scheduled for the SLS.– NASA has set out (and allocated budget) for one test flight before humans are put in the next spacecraft of SLS scheduled for 2024.

It will travel further in space than Apollo.- In the case of Artemis I, Orion will be launched on a path through the outer reaches of the moon, 

which will transport the spacecraft further than our satellite, and further than any other spacecraft that Apollo astronauts did and any other craft that was designed specifically for humans.

This project has been way past budget and way past due.– The SLS was initially expected to run U.S. taxpayers around $10 billion; however, the cost has more than tripled to over $20 billion.

It is based on familiar components. – In addition to the frustrations over the long development time frame in the development of SLS,

...the reality is that primary elements that comprise the software were sourced off the shelves instead of needing to be designed from scratch. 

Some well-known names are aboard.– There aren't any humans on this flight. However, there is an ungulate and one member of several families.

The plush Shaun the Sheep toy will feature a stunning image of moons and Earth in the constellation of Orion within a promotion partnership.