Viviane, I say "but" because many professionals have the pressure to produce, produce, and if you fall behind on any given project the stream of money gets dried up quick. When I say they have an agenda, I'm not talking about a conspiracy to take over the world, blah, blah, blah. A better word would be "goal", they have their goals and in occasions may favor certain experiments or reports in order to keep the different Nasa programs alive.
Back to the moon landing topic.
This is what I was reading a few days ago explaining the Van Allen Belt:
The Van Allen belts are full of deadly radiation, and anyone passing through them would be fried.
Needless to say this is a very simplistic statement. Yes, there is deadly radiation in the Van Allen belts, but the nature of that radiation was known to the Apollo engineers and they were able to make suitable preparations. The principle danger of the Van Allen belts is high-energy protons, which are not that difficult to shield against. And the Apollo navigators plotted a course through the thinnest parts of the belts and arranged for the spacecraft to pass through them quickly, limiting the exposure.
The Van Allen belts span only about forty degrees of earth's latitude -- twenty degrees above and below the magnetic equator. The diagrams of Apollo's translunar trajectory printed in various press releases are not entirely accurate. They tend to show only a two-dimensional version of the actual trajectory. The actual trajectory was three-dimensional. The highly technical reports of Apollo, accessible to but not generally understood by the public, give the three-dimensional details of the translunar trajectory.
Each mission flew a slightly different trajectory in order to access its landing site, but the orbital inclination of the translunar coast trajectory was always in the neighborhood of 30°. Stated another way, the geometric plane containing the translunar trajectory was inclined to the earth's equator by about 30°. A spacecraft following that trajectory would bypass all but the edges of the Van Allen belts.
This is not to dispute that passage through the Van Allen belts would be dangerous. But NASA conducted a series of experiments designed to investigate the nature of the Van Allen belts, culminating in the repeated traversal of the Southern Atlantic Magnetic Anomaly (an intense, low-hanging patch of Van Allen belt) by the Gemini 10 astronauts.
How can we test this explanation to determine its validity? our only source is Nasa when it comes to explaining this... that's where gets complicated to me.