Dark matter and dark energy are two things we measure in the universe that are making things happen, and we have no idea what the cause is.
Neil deGrasse TysonI try to keep this in mind when tied in to a rope 75 feet up in a tree... The history of ideas about our place in the universe has been a long series of let-downs for those who like to believe we are special.
Neil deGrasse TysonToday secular philosophers call that kind of divine invocation God of the gaps-which comes in handy, because there has never been a shortage of gaps in people's knowledge.
Neil deGrasse Tyson