00:00With Artemis II, the so-called ICPS, the Interim Cryogenic Propulsion Stage, is still flying.
00:06And this word, interim, is the key to the problem here. Because, actually, it was planned from the
00:12very beginning that the SLS would fly with a more powerful upper stage, the EUS, Exploration
00:18Upper Stage. And that's precisely where a chapter in the politics of spaceflight begins,
00:24which to this day has been ignored by the public. Originally, the SLS was supposed to fly with the
00:31EUS from the very beginning, which is being developed by Boeing. More power, more payload,
00:37better architecture. But the development of the EUS was delayed. And ULA, a joint venture between
00:43Boeing and Lockheed Martin, proposed the following. Let's build an interim solution for these first
00:48flights. This interim solution became the ICPS. At its core, it's a slightly modified upper stage of the
00:56retired Delta IV rocket.
