On Saturday, MSNBC’s Craig Melvin spoke with the science guy himself — Bill Nye — about two congressmen who have recently spoken out about evolution. Todd Akin, for instance, made headlines when he referred to evolution as not “even a matter of science.” Then, Congressman Paul Brown weighed in, calling evolution and other scientific theories as “lies from the pit of Hell.”

RELATED: Todd Akin On Evolution: ‘I Don’t See It As Even As A Matter Of Science’

Nye clarified that evolution is something that has been discovered as opposed to “made up,” adding that there is overwhelming evidence in favor of the scientific theory. And, being a seasoned teacher, Nye even brought out props — including roses — to explain past experiments concerning evolution.

He was bothered by both men’s assertion that the Earth was only something around 6,000-10,000 years old. Using the technology behind smoke detectors (more props!) to explain, Nye stated that the Earth is, in fact, something more like 4.5 billion years old. “That’s science; those are facts,” said Nye. “You can’t just close your eyes and make them not true.”

After being shown clips of both Rick Perry and Michele Bachmann discussing evolution, Nye dismantled Bachmann’s claim that there is some “controversy” about it within the scientific community. “But there’s no controversy amongst scientists,” he said. “There’s controversy among…” He then said that to arbitrarily “set aside those discoveries” made by our ancestors “betrays, really, the best in us, betrays the best use of our brains.”

Nye also pointed out than an embrace of scientific technology will result in greater innovation and, as such, more jobs. Later on, he hesitated to weigh in on Romney’s thoughts on evolution because, as he said, he did not want to discuss other people’s religions. But he did have a word of advice for viewers: When it comes time to vote, he said, keep climate change in mind.

Have a look, via MSNBC:

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