Why Does SLS Still Exist When We Have SpaceX Starship?

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#techfasn #spacex #starship #sls

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Intro: 0:00

Why NASA needs super-big rockets: 0:35

Starship on the Moon plan: 4:44

The reasons beyond engineering: 7:27

Should NASA just use 1 rocket?: 11:08

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Why Does SLS Still Exist When We Have SpaceX Starship?

Why does NASA need two giant rockets to get astronauts back to the Moon when Apollo managed it with one?

In this video, we break down exactly what SLS and SpaceX’s Starship are each supposed to do in NASA’s Artemis lunar architecture.

We’ll look at why Artemis needs a super-heavy-lift rocket in the first place, and why getting to the Moon is a lot more complicated than simply reaching low Earth orbit.

Then we’ll dive into the surprisingly complicated history of SLS, including how the rocket grew out of NASA’s post-Shuttle plans and inherited a lot of technology from the Space Shuttle program.

We’ll also explain where Orion fits in and why SLS itself isn’t actually the vehicle that lands astronauts on the Moon.

Why Does SLS Still Exist When We Have SpaceX Starship?

From there, we’ll follow Starship’s role as the Human Landing System, including orbital refueling, the trip to lunar orbit, and the actual lunar landing.

But the story isn’t just about rocket engineering, because there are also political, industrial, and strategic reasons NASA continues to maintain SLS and Orion.

We’ll look at why redundancy matters, why relying entirely on one commercial provider comes with its own risks, and why NASA has pursued multiple lunar-landing systems.

Then comes the big question: does NASA really need both SLS and Starship?

We’ll compare their fundamentally different approaches, from SLS’s traditional expendable design to Starship’s ambitious goal of full reusability and much higher flight cadence.

And ultimately, this isn’t just a story about two rockets—it’s about two very different ideas for how humanity could explore and eventually build a permanent presence beyond Earth.