The solution proposed by the Advanced Research Projects Agency (ARPA) was radical. They abandoned the cylinder. They abandoned the capsule. They proposed a shape with no distinct center of gravity, a structure capable of rotating to simulate gravity for long-duration crews while presenting a difficult, moving target to enemy radar.
Ensure the transition between paragraphs is logical. Does every point lead naturally to the next? Strengthen Arguments: Add more evidence or detail where a section feels "thin." Clarify the Thesis: p1flyingringesp