text: There were more ideas of it being dangerous to explore rather than it being worthy to explore. He listed five resons it was a good ideab to explore which are listed above and they are not very helpful to his case. These are a few of the dangers he listed of exploring Venus up close it's inhospitible, "has a thick atmesphere of nintey-seven percent of carbon dioxide blanket" covering it. That even a submerine couldn't survive. Humans have sent sacecraft to land but its still claims to be unmanned since no spacecraft sent has survived landing.