Bill Nye is back — and he couldn't have picked a more opportune time than when he joined the Earth Day celebration with the rest of the world.

Nye At March For Science

Nye spoke before thousands of Americans who showed up at the U.S. capital, Washington D.C., to support the flagship rally for March for Science on Earth Day (April 22) despite the weather.

"Greetings, fellow citizens. We are marching today to remind people everywhere, our lawmakers especially, of the significance of science for our health and prosperity," Nye greeted the cheering crowd.

An idea born on Reddit, the protest's purpose is to call out the Trump administration's untoward treatment to science, as evidenced by looming budget cuts to key scientific agencies, such as the National Aeronautics and Space Administration and the Environmental Protection Agency.

Nye also serves as an honorary co-chair for the March for Science.

Is Nye Really A Science Guy

"Currently, science is being actively undermined by ideological forces motivated to maintain the status quo rather than advance the nation's long-term interest," Nye wrote for his opinion piece on CNN.

Because of his impassioned speeches on the pivotal role of science and about those who take it for granted, critics, such as Sarah Palin, are quick to question the 61-year-old's credibility to speak about science.

But what many people don't know is that aside from being famous enough to cement his name in pop culture, Nye has a bachelor's in mechanical engineering from the prestigious Cornell University and worked for the multinational aircraft manufacturer, Boeing.

More impressively, the Emmy-winning TV host also invented an interplanetary sundial for NASA and is the chief executive of the Planetary Society, a space-advocacy group co-founded by the legendary astronomer, Carl Sagan.

Nye On Saving The World With Science

Known as William Sanford Nye in real life, his first ticket to fame was his hit PBS children's science show "Bill Nye the Science Guy," which aired from 1993 to 1998.

Aware of the immense power his popularity and programs possess, Nye used them wisely as a tool to educate people about science and its importance.

"The reason I made the 'Science Guy' show was quite deliberate. If we can get young people excited about science, then we have a shot. I knew I was fighting the fight," he revealed to The Washington Post.

His latest talk show on Netflix, which is targeted to audience who grew up watching him, "Bill Nye Saves The World" explores the most controversial scientific issues of today.

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