text: The author uses the evidence that NASA has an idea to send humans to Venus because NASA has a project that will allow scientists to float above Venus. The author's reasoning is that, in paragraph five, NASA came up with the idea of a vehicle hovering over Venus and it will allow the scientists to avoid the unfriendly ground conditions. This is great evidence because it will prove that scientists do not need to get harmed in order to study Venus, which connects back to the claim that Venus is worth studying.