About COSI

Community Board

The COSI Planetarium is now poised to bring the wonders of the universe back to Ohio. COSI intends to reopen this 200–seat teaching tool to showcase astronomy and inspire Ohioans to explore our amazing infinite universe. Your generous support – in any dollar amount – can help COSI reopen this 60–foot window to the skies.

More Information

With your help, the COSI Planetarium will not simply reopen...
it will be better than ever.

Planned improvements include:

  • State-of-the-art digital projection technology for unsurpassed visual realism, color, and texture
  • The ability to display much more than night skies, including underwater volcanoes, the workings of the human heart, and more
  • New computers enabling COSI to offer both prerecorded and live programming, including breaking news, concerts, and sporting events
  • Flexible technology that allows audience-generated content to be presented on the dome, including school media projects
  • Digital control tablets that give a presenter the freedom to be anywhere in the dome
  • Drag-and-drop capabilities, making it easy to add digital audio and video effects during a program to seamlessly integrate music and narration into presentations
  • Motion sensor technology that allows a presenter's or guest’s body to become a controller, capturing gestures and translating them into commands

With your help, we can make our Planetarium dream a reality for COSI and our community. The COSI Planetarium will be a great asset for our community, but we can’t make it a reality without your help.

With the new Planetarium, the possibilities are endless!

On Exhibit Now: 50 Years of COSI

Learn about our future
by looking at our past.

On your next COSI visit, explore Columbus history in the Columbus Historical Society gallery located on COSI's Level 1. Experience changing exhibitions showcasing historic artifacts and learn about the people, places, and events that have made Columbus history unique. Visit the Columbus Historical Society's website for additional program and event information.

Learn More

Admission is free.

Located inside COSI's main entrance.
Open Wednesday through Sunday.

Special support for the 50 Years of COSI exhibition provided by:
Tad & Nancy Jeffrey
The Jeffrey Company

About the Columbus Historical Society

The Columbus Historical Society was founded in 1990 by a group of professional and amateur local historians with a passion to share Columbus history. The Columbus Historical Society provides outstanding free public programs, exhibits, publications, elementary and adult education, and its signature summer bus tour series. Learn how to join the Columbus Historical Society and take part in CHS programming, receive CHS newsletters, and more.

About "50 Years of COSI"

“50 Years of COSI,” now on display in the Columbus Historical Society gallery at COSI, celebrates fifty years of COSI, Columbus’ dynamic Center of Science and Industry: its creation, its growth, and the people who have inspired and influenced COSI. Retrace COSI’s colorful history through photos, videos, memories, and artifacts, including COSI’s original pendulum ball, planetarium projector, and a recreation of the original COSI’s famous Coal Mine Elevator! The “Fifty Years of COSI” exhibition is open inside the Columbus Historial Society gallery whenever COSI is open. Admission to the Columbus Historical Society gallery and “50 Years of COSI” is free. Please note that admission to other COSI exhibitions requires a ticket purchase.

Your ENERGY choices matter

COSI’s new Energy Explorers exhibition focuses on how energy powers the world around us-from the transportation we take, to the products we buy, to the ways we live and work. You'll learn where energy comes from, how energy powers the world, and why the energy choices you make are choices that matter.


Your energy use impacts your personal comfort and finances, friends and family, the environment, your wallet, and your planet. In the Energy Explorers Game, choose your "Energy Explorer," and make choices throughout the exhibit that challenge you to become an energy hero.

What happens during a BLACK OUT?

You may not have thought about where energy comes from, but you'll find out here. It's Electrifying: Shock yourself and your friends with an electric current. Restore the Power: There's a blackout in the neighborhood. Can you redistribute power and get the lights turned back on? May the Best Bulb Win: Use a hand crank to power incadescent, CFL, and LED light bulbs.

What can YOU do at home

Find out ways to save energy around the house at fun, interactive exhibits. Block That Draft! Find and seal cold air leaks with a thermal imaging camera and a caulking gun. Energy Vampires: Find the energy vampires in your house and eliminate them. Don't Run Out of Gas: Try to make it to the gas station behind the wheel of this driving game.

Exhibit Pledges

Make a difference by sharing your pledge with the world!

Plan-it Green Game

Become the mayor of Greenville and transform your city into a fresh, thriving eco-community in Plan It Green, a new online simulation/tycoon-style game that's perfect for students from the National Geographic Society.

PlanItGreen created by National Geographic, GE, and Center of Science.

ENERGY in the news


Solar energy is light-wave photons and radiation captured from the sun. This light and radiation is turned into heat, electricity or both, depending on how you build your home...


I'll be bluntly honest: I don't think most backyard wind turbines, still less rooftop wind turbines, are worth the money in most situations. But there are a couple which are really pretty good...


The hydraulic fracturing, or fracking, of deep shale deposits is unearthing a lot of natural gas — and controversy.

Support COSI

COSI exhibitions and experiences are supported by our customers, members and donors. Consider making a donation.

Visionary Sponsor

Innovation Sponsors

Support in Part by a Grant

Presenting Sponsors


Supporting Sponsors

Buckeye Power

PPG Industries Foundation

Contributing Sponsors


Tad and Nancy Jeffrey

Center for Science


National Geographic

Gunther von Hagens' BodyWorlds & the Brain

An Exhibition Beyond Belief

Gunther von Hagens’ BODY WORLDS & The Brain includes more than 200 authentic human specimens - including entire bodies,individual organs, and transparent body slices - preserved through Plastination, a revolutionary specimen preservation process. This all-new presentation highlights neuroscience, brain development and performance.

BODY WORLDS is open during COSI business hours.

Audio Enhancement Tour Available Group Tickets are Available Private Corporate Events are Available Buy Tickets Buy/Renew Membership

The Exhibit

Looking Inside the Human Machine

BODY WORLDS is the anatomical exhibition that gives visitors a penetrating look at the form and function of the human body, merging anatomy, neuroscience, and philosophical musings in a special feature on the brain. Specimens on display in the BODY WORLDS exhibitions belonged to people who declared during their lifetime that their bodies should be made available after their deaths for the qualification of physicians and the instruction of the public through Plastination. Many donors underscore that by donating their body, they want to be useful to others even after their death. There are more than 13,000 on the Institute for Plastination body donation roster, more than 1,000 are Americans including people from Ohio. Learn more at the BODY WORLDS website.

is it for kids?

BODY WORLDS is a stunning glimpse inside the human machine. More than 35 million people, including young children, have viewed the BODY WORLDS exhibitions around the world. It is important to note that the exhibition includes full-body plastinates with exposed genitals. Ultimately only a parent or guardian can decide what is right for their child.


Making the Human Body Remain

Invented by scientist and anatomist Dr. Gunther von Hagens in 1977, Plastination is the groundbreaking method of halting decomposition and preserving anatomical specimens for scientific and medical education. Plastination is the process of extracting all bodily fluids and soluble fat from specimens, replacing them through vacuum forced impregnation with reactive resins and elastomers, and then curing them with light, heat, or certain gases, which give the specimens rigidity and permanence. For a single body, the entire process from start to finish takes approximately a year or 1,500 working hours to complete!


Presenting Sponsor


OhioHealth is a family of not-for-profit, faith-based hospitals and healthcare organizations serving patients in central Ohio since 1891. OhioHealth is home to one of the nation’s largest comprehensive neuroscience programs, specializing in the treatment of brain and spine conditions.