A majority of Americans don't believe in even the most fundamental discovery of 20th century physics, which 99.9 percent of members of the National Academies of Sciences do: that our universe began with an enormous explosion, the Big Bang.

51 percent of people in a new AP/GFK poll said they were "not too confident" or "not at all confident" that the statement "the universe began 13.8 billion years ago with a big bang" was correct.

In fact, fewer Americans were confident in that statement that any other on the list, which covered topics like vaccines, evolution, and the Earth’s age.

AP/GFK

It is worth noting, however, that the way the question was framed gathers at least two possible different groups into the "not confident" bin: A) people who hold a different belief about the beginning of the universe and B) people who just don't know, and might have been scared off from saying they were "confident" in an answer.

No matter, the Big Bang question data was enough to "depress and upset some of America's top scientists," the AP said.

If so, they haven't been paying attention to the data about the scientific knowledge that Americans possess. The National Science Board (a part of the National Science Foundation) has produced an annual survey of American beliefs about science called the Science and Engineering Indicators since the 1980s.