That absence is not a failure of historical research.

It is the shape that her career took, given the specific institutional environment she worked in.

The absence is, in its way, as informative as the presence.

What The Handbook Actually Said, And Why It Mattered

The Planetary Flight Handbook deserves more attention than it typically receives in accounts of her life.

The handbook was produced in multiple volumes covering different destination bodies — Venus, Mars, and beyond.

It was a genuinely technical publication, not a popular science overview.