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.
Oh yeah, very true.
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.
Our only source for explaining what, exactly? The Van Allen belts? That's not true. The route taken by Apollo? Also not true. What, specifically, are you imagining NASA as being your only source for?