Not only is he not afraid of what he does not know, he is excited by it: his curiousity and imagination are key tools – and he thinks for himself.
Science is not about certainty as those who call themselves “scientist” but have sold their souls for steady work as some ghost writing advertising lackie in the employ of big academia and big corporations.
Niel deGrasse Tyson is a real scientist and he communicates- not like a corporatized Borg- but like a human being.
“We are in this universe riding though it, connected with it, part of it but it is also within us.”
“We are made of stars.”