Re: AVENGERS: Grade, Reviews, Discuss, DVD & Sequel **SPOILERS**
Well, the Red Skull had the Cosmic Cube but all he could do was make weapons out of it rather than remake creation. Then when SHIELD got it they couldn't do much with it, because they were working with the level of technological advancement. But I would imagine the study of it is what enabled their other breakthroughs like getting the Helicarrier to work. Maybe getting their hands on the Cube and the Destroyer led to a common breakthrough.