What Bill Nye Thinks of 2015's Biggest Moments and Discoveries in Science

Bill Nye 'The Science Guy' talks about climate change, water on Mars, the moon and Pluto.
2:44 | 12/22/15

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Transcript for What Bill Nye Thinks of 2015's Biggest Moments and Discoveries in Science
So bill there were quite a few discoveries and breakthroughs this year in 2015 among them water on Mars. Moral perspective for a while so why claim is that we go to the right place on Mars where they're seasonal flows of water. Below the surface. There might be evidence of life from consignment mentioning fossil bacteria of some sort. Of this would change the world. Florida. Has been downgraded to a dwarf planet and now yesterday downgraded. That's your term I mean I don't even my. Very excited mother just served us nine heat that's not. And when that these new horizons spacecraft passed by that we saw this guy is water ice and here I would submit isn't at least seven geologic regions. So the thing that's significant or Pluto everybody is it's made of the prime ordeal stuff of the sources. So you and I are made of the same material. Your car and warrants offering false personal things and so what we study Pluto we are learning more about. Ourselves. Through this year. We saw this Superman Superman. And the did you event that the blood and we had the blood and in my own so what distinguishes. All of those there arbitrary they're human cancer so but they're charming film a sameness right it's. The the super moon happens 456 times a year. So the moons the orbit isn't quite circular. Sometimes it's 14%. Closer than it is other times which makes it because it loses its where. It makes it 16%. Brighter doesn't radically change the course you ministry it happens often enough chemical and with the line. The blood. Is when you have full lunar eclipse. Followed by another full moon eclipse without a partial eclipse in between wall. And so you'll get four of them happen in groups of four. And it's called tetra. And we had one at a tech trend this year cool. What was your favorite scientific discovery of two. Hard to pick one. It happened just a few days ago. In the United States. The world's largest economy. Over half of the people. Measured scientifically. Now except that humans are causing climate change. And I claim this is a tipping point for human history. Win the most influential economy in the world has voters that embrace this this discovery. Now a big changes can be made now we can change the world.

This transcript has been automatically generated and may not be 100% accurate.

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