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March for Science Chicago organizers said 60,000 people attended the April 22 event. (Susan Wigodner / Twitter)

According to organizers, an estimated 60,000 people attended the March for Science Chicago, making it the largest of those that took place Saturday in 400-plus cities worldwide. But some area institutions did not officially support the event.

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Disaster scenarios near and far are daily considerations for a group of local scientists and engineers. We meet two members of the Global Security Sciences division at Argonne, nicknamed the Doomsday Squad.

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Emily Graslie appears on Chicago Tonight in September 2015.

The rally, march and expo is projected to be among the largest of those taking place Saturday in 400-plus cities worldwide.

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(Shedd Aquarium)

Shedd Aquarium’s dolphin calf Kukdlaa celebrated his first birthday with positive results from a physical checkup. And with cake, of course.

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Indiana Dunes

A spill last week at a U.S. Steel site in Northwest Indiana released an unknown amount of a potentially carcinogenic chemical into a Lake Michigan tributary, prompting the closure of three beaches at Indiana Dunes National Lakeshore.

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Life model of the new species Teleocrater rhadinus, a close relative of dinosaurs, preying upona juvenile cynodont, a distant relative of mammals. (Museo Argentino de Ciencias Naturales)

A Field Museum researcher is among a global group of scientists who have discovered an early dinosaur that reshapes our understanding of dinosaurs’ evolution. 

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(Plastic Pollution Coalition)

With an eye toward Earth Day, Shedd Aquarium has launched a campaign encouraging people to switch from single-use plastic straws to reusable or biodegradable alternatives.

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Astronaut Thomas Pesquet worked with artist Eduardo Kac to create "Inner Telescope," a piece of artwork that is currently aboard a space station. (Courtesy of Eduardo Kac)

As artwork by a Chicago artist orbits the Earth aboard the International Space Station, a medley of professionals will explore how technology and artificial intelligence have shaped their industries. 

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(Chicago Mayor's Office)

Mayor Rahm Emanuel announced Sunday a commitment to transition the city’s municipal buildings and operations to 100 percent clean and renewable energy by 2025.

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They’re fast, they’re precise and in some cases they’re even ... cute. We visit the trade show Automate to get a look at the latest in robotics.

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President Donald Trump signed a law Monday night allowing internet providers to sell your browser history. How worried should you be?

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(Christopher Schirner / Flickr)

How Hardik Bhatt wants to protect state agencies from hackers. 

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First-time mother Katrl gave birth to a dolphin calf in April 2016. (© Shedd Aquarium / Brenna Hernandez)

What is it like to touch and work with dolphins? One Shedd trainer said they feel firm, smooth and a little colder than you might expect, according to the aquarium’s dolphin fact list.

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(Courtesy of the Field Museum)

More than 30 million objects are stored behind the scenes at the Field Museum. A new exhibition addresses how scientists from all over the world are using the vast collections to make new discoveries.

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A group of coyotes captured by a motion-detected camera in Chicago. (Courtesy of Lincoln Park Zoo)

Since 2010, the zoo’s Urban Wildlife Institute has used motion-detecting cameras and acoustic monitoring equipment to record and document animals roaming through the city.

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TechGirlz is “dedicated to reducing the gender gap in technology occupations,” according to its website. (Courtesy of Tracey Welson-Rossman)

An organization dedicated to teaching technology to middle school-age girls is coming to Chicago this spring.